Gakuen KING:Walkthrough

This will (hopefully) be a short walkthrough for Gakuen KING. It is actually quite linear despite you seemingly having multiple options at first.

I will try not to spoil the events, but scenes/sidequests for characters at Tentei will have to be named. Chances are they won't be spoilers anymore at that point.

I think stat-up item chests are random, but I haven't actually tested them all. They'll just be referred to as stat-up items.

Anything that is not mandatory in a school is missable as you can't re-visit areas after you complete them.

Pre-guide notes
I have no idea how to trigger the female Iwatsu 100 point score CG (you can edit the score with CE), you apparently want Hidehiko to be at 10 for all academic stats. It is also possible I did actually get it before and you can't re-acquire it.

As stated on other pages, leveling is odd in this game. You need to run into an enemy called an Up-chan (2/3) which when beaten levels you. They go up to 10/20/30 respectively. They will only appear if you actually fight battles, running doesn't work. Later ones seem to have some catch-up feature where if someone is at a very low level they'll be able to gain 2 (happened with up-chan 3 for me). Keep in mind that Up-chan's can run and they are one-shots, so you can't switch character.

Plum's G (an event encounter) should just be a re-skinned Up-chan 3 which is less of a pushover.

Poorhouse High School/赤貧館高校
You get to do a scene before actually going there, but this is where you are when you take control. You can use the tent to heal and save-chan next to it to save. Keep in mind that Kobayashi can teleport you to key locations if you have units left.

The first thing you want to do is visit the hut above, after the event you should go in and get Kanda. He'll be usefull till you get another character later on. With Kanda in tow, you can now enter the school building. Speak with the vigilantes to have them join Kanda in fear of being eaten.

At this point you will probably run into Iwatsu, they are a set of teachers who have a chance of appearing after a certain amount of encounters (running counts too unlike with Up-chan's)

Go up first though and get the crowbar in the house there, with that you can open the manhole covers. Open the west one and go north for a stat-up item before going back out.

The east manhole has a western route with a boss blocking the way, if you beat him and interact with the people past him you'll have to find a girl as a sacrifice. I don't actually remember if there was anything else in this part of the sewers I have some suspicious seperate notes which mention 2 stat-up items, but they aren't attached to this block. Check to be sure. Either way to progress the plot, go back up.

Now explore the school. If you talk to the vigilantes, they'll be absorbed into Kanda's troops as they fear being eaten. In the SE of the building you find a suspicious plank. Step on it to fall into the sewers again.

In this blocked off section you should find a rope, to the south some rooms with a stat-up item, rocket parts (tip) and desert marching equipment (pants). To the west and north you should find an H photo. Now use the rope at the hole to go back up.

If you go west and south from the hole you should run into an infirmary with a girl named Sachiko. You'll have a scene with her, go back after and talk to her to obtain a Sachiko.

She'll make a good sacrifice so take her to the orgy, the path will be unblocked and you'll find a chest with an Ikazuchi Hammer (stat-up item, should be fixed). Break open the wall above and speak with the packrat boy. This will end the section.

Tentei 1/Overworld 1
After the burning and burying of Poorhouse High, Tentei academy is built in it's place. Some explanatory scenes happen before you take control.

At first you won't be able to do much except save and distribute soldiers, so do so.

Now go and explore the small bit of overworld, you can actually only progress in one way, but visit Golden Industrial to the south, then the swamp in the east (for plot reasons). After this go to the blown up bridge to the north and interact with the water on the east, this should give you the secret character Yuriika. They are weak, but their skill should recover other people's HP a bit (I never tried).

Now go west to get interrupted by the store clerk, you can't actually do anything there or with her yet. Keep going and at one split go north, you'll end up at some old factory. Interact with it the rebuild it into a space center, you can't do anything with it yet though.

Now back to the split to the Nishien HS, you shouldn't be able to progress there and the enemies are pretty strong, so just run from them. Go around the school building and you'll see some weird objects. Interact with the right one (Cosmo Cleaner Omega) a couple of times and you should be able to take it with you. Now go back to the swamp and use it.

After this the path to Kunlun High should be openend, the the north of it is the desert store, but it is equally useless for now. Enter Kunlun High from the south to enter 1st Kunlun High.

1st
The building close by the entrance leads to the jail, it actually serves no purpose and you won't be able to open the gates ever, so don't worry.

West of that building you'll find some trees with a girl who seems to be completely out of it. She asks if you can get some pictures she dropped on the roof, she gives you the rooftop key to get them.

Enter the building and explore, the first stairs are a shortcut back down for later. In this building rooms get blocked off by comittee members that check if you follow certain rules, I assume this isn't random. Go north and east to run into 3 blocked off rooms, the left should require shotaro and the middle Sayoko. Both of them have stat-up items. The right one can't be accessed yet. Take the nortwest stairs.

Below you there is a blocked classroom, use Hidehiko and get a stat-up item. East and south has a blocked room (Shotaro) with a stat-up item. Further down the hall is another guarded room (Kanda) with a stat-up item. To the south is the door that you can open with the rooftop key, take that as you can't get past the hallway yet. Grab the photos on the rooftop and take the shortcut door down and back to the girl. Give her the photos and you'll get a student handbook.

Now go back and show it to the hallway guards, they should let you pass. Check out the top room to find the boss of this school, Bakuha, don't agree with him and he drops you down a trapdoor. After some events you are freed and end up in the courtyard of 2nd Kunlun High. Go back towards Bakuha in 1st, but take the south room and get dropped again. Return to that room, push them in for good measure and rope down to get to that one locked door with Desert Marching Equipment (socks) and Rocket Parts (Window). Rope again and go back to Bakuha. Beat him up this time to get one of the keys. Now on to 2nd Kunlun.

2nd
This school is somehow very mazelike, but you have a map so you really shouldn't get lost.

As you enter you'll find a room guarded by a delinquent. They want a password. This is found by erasing some graffiti above the room using the Volatile liquid you get on the 3rd floor from a druggy. This room contains 2 useless items, 2 stat-up items and an H-photo.

An NPC on the first floor mentions telling the password to a girl with the same colour hair as her. The girl in question is actually Natsumi, so you have to save her, but you need an item from here to do so.

The inner area is a maze, explore the area to find Rocket Parts (body) and the some plates with Kanji on them. I went 夜, 露, 死, 苦 to open the door to the 2nd floor.

To the west you find Rumi, she is dealing drugs. You have to buy some to get past her. This item is normally dropped by enemies and increases loyalty. I don't actually know what loyalty really does and you should be able to buy plenty as you won't run out of money anyway (if it even decreases it). I just bought one or two and continued on. Follow the outer path to find some Desert Marching Equipment (Earplugs). In the western section of the maze you'll find a stat-up item.

In the room at the end of the maze you'll find 2 girls. An S&M queen and her willing participant. Beat her up, the other girl gives you the bondage gear and you can use that to free Natsumi, so go and do that to pick her up for the 3rd floor.

On the 3rd floor, you can find the previously mentioned Volatile Liquid from the druggy in the bathroom. Go all the way around to the gatekeepers and with Natsumi in tow you should be able to pass. The left chest is a plot chest, so don't worry about it. Talk to the middle person and some events happen. Make sure to H her (as you can apparently fight her) and afterwards you should get the key, but Natsumi took it. You'll find her at the stairs, you'll H her and then get the key.

You can now open the partition and when you do, encounters will be mixed. You'll find a half of the mandate on the 1st floor (accessible from both school) and the 3rd floor (2nd only). The statue is on the 2nd, so blow the place up after making sure you missed nothing.

Tentei 2/Overworld 2
Check out your new characters after the events. Serika is pretty good and you can basically use her to solo the entire game if you stuff her full of ATT and DEF items whilst fighting to level her up for more total troops.

You should be able to check out the classrooms and dorms. No new paths have opened up on the overworld so go to Nishien

Nishien Electromagnetic High School/西苑電磁高校
You should now be able to enter the school by sacrificing Bakuha, his units will be sent back to school and you'll get him back later, so don't worry. Also you can just leave, the weird woman won't show up to block the path.

This school has you press a bunch of buttons to blow up walls to get through. Some blow up walls on other floors and other summon enemies that bomb you, so it's kind of a hassle. The bombers can't kill units completely, so it might be wise to use a dedicated button presser. Don't make Hidehiko the one as you can run into encounters after switching and if he dies from being at 1 HP, it's game-over. It isn't that hard and writing it out makes it seem more complex and mazelike than it seems.

At first just follow the button to blow up a path to some stairs and go up. Press the only accessible button there and go back down to press 3 newly accessible buttons. Press them, but watch out for the middle on as it is a bomber. A path to a chest with a stat-up item should have opened, get it and go back up.

On the 2nd floor, go back to the previous button you pressed, a path should have opened up. You'll run into Hinako (a hologram), just continue on and press the buttons. One opens a path on the first floor and the other is a bomber. Go to the northern stairs (Hinako appears again).

Now you should be behind the first stairs, go right and press the button to open a path on the 2nd floor, so back you go. This should have opened path to a chest with an Oxygen Drop.

Now back down the northern stairs and take the left path. You'll run into Hinako a couple of times (the second time she'll send out a large group of bombers). You should also run into a button, so press it. You'll run into a split. I explored the east section first without going west and saving Bakuha, but you can get him if you want.

Eastern route: Press the 2 switches before the broken wall to open walls on the 2nd floor, following through it you'll run into some stairs and a switch to the left of it. That switch has 6 bombers, so be sure to use your sacrifice. Take the stairs.

On the 2nd floor, go all the way up and through a wall for a switch (2nd floor) then take the other path for another (1st floor) and go back down. Go left, press 2 switches (1st floor) and take the stairs.

Back on the 2nd floor again and press the switches (floor 2 and 1), go back down the stairs and to the left for some more stairs. Go up and press buttons (floor 2), go back but remain on this floor as some wall should have opened with two more buttons (floor 2 and bomber), now go east and press the buttons (1st and 2nd floors). The broken wall above should lead to some stairs going down. This leads to a blocked door that requires the Card key.

Western route after Eastern route: You'll run into a prison which is actually a puzzle. To free them, you need to order them from heaviest at the bottom to lightest at the top on the right side in 11 turns. This is quite easy, but just in case: girl right, Bakuha Middle, girl middle, fatty right, girl left, bakuha right, girl right. Bakuha joins back up and the wall to the west should have collapsed

By doing the eastern route first, a southern set of stairs should have opened up. Get the chest first for a stat-up item and then interact with the girl for an H scene and some events. Sayoko has been kidnapped and her army is sent home. Speak with Mitsue again for Kobayashi to fix her and she'll give you the Card Key. If you go back to recover at Tentei, you'll run into Cyborg Sekimori for a battle, so be warned.

You can now go past that door, but let's do some other stuff first. Go back down the stairs and go north and up those stairs. Keep pressing buttons and following the path it creates. The left one in the smaller room is a bomber. At some point you'll end up in a room with a stat-up item and the Desert Marching Equipment (Hat). Now go back to the 1st floor and the eastern route's 3rd stairway. You should run into Rumi again and get some H.

Now go back to the the barrier and use the Card Key to pass it. The 2nd room has an extension cord (can pick that up later) and a stat-up item. The toilets further to the west have a coil (can pick that up later) and a stat-up item. The first room to the north has another coil and some Rocket Parts (Steering Wheel).

Interact with the computer there, exhaust all the options before picking warp. You'll be warped to an inaccessible area on floor 2. The stairs nearby should take you to a room with a stat-up item and a ruby escape teleporter that sends you back to the computer.

Going south on the 2nd floor should lead you to a room with the shitty ninja, she got stuck as she was out of it. When she leaves she drops a scroll with a quick how to on how to make magnets. You can now pick up the coils and extension cords you found as well a get the Iron rod from the shop on the overworld. Also if you have the password, interact with the weird fleshy thing a couple of times for some stat upgrades to your leading character. Take the escape teleporter back.

Go get the encountered items and the rod, you need 3 of both the coils and extension cords. Now check out the middle room, Hinako's locker room has an extension cord as a washline so take it, above that room is another coil. Interact with the computer for another extension cord. Now use the Iron Rod to make an electromagnet and interact with the outlet outside of this room for some events.

You'll have to fight a 4 fight chain-battle, it shouldn't be an issue. After this open the chests for a mandate and a stat-up item. Leave the room for plot and you should be teleported outside to the statue, so blow the school up. Some more plot happens to end this section.

Tentei 3/Overworld 3
You have to check on Sayoko, you'll get an H-scene doing this.

A lab has been built (passed the dorms) for Hinako so check it out, you shouldn't be able to do anything with her or Alpha yet. Also check out any new students

Before going to the next school, you can get a new secret character. Go west past the school you just destroyed, but keep hugging the southern wall. One of the tiles should be passable. Now you just have to figure out the path to the bottom of the round brownish place to find Gogigi. Its attack is somewhat similar to Hidehiko's due to its strong base power. It also paralyzes, so the enemy can't actually attack.

You should also be able to explore the Desert Ruins now if you have grabbed all the Desert Marching Equipment pieces before. So talk to the desert store clerk to do so.

Afterwards, head west from the previous school to get to the next one.

Desert Ruins
This area seems to be somewhat randomly generated, certain paths are blocked by enemies and they generally lead to chests. One of the other gimmicks is that you are stuck with just Hidehiko (and Kobayashi), but your special moves are now upped to 9.

The bottom passage exits and the top passage takes you to a nopan bar (gives you its CG), however it is really used to get an item for a sidequest later on.

The items I found were: 6 stat-up items, Rocket Parts (Engine), Oxygen Drop 2 and and H Photo. I also found a joke item, but that gets tossed.

Aoi Umineko Girls School/青海猫女学院
The beach to the west has nothing for now, so enter the school. As you do, Sekimori Mk2 should harass you, beat him up again.

You'll notice that there are no encounters at first, so explore to your hearts content. First you should go to the building to the SE and talk with the girl there. The gymnasium above is locked. Now if you interact with the main door you will crossdress to get inside, you can also interact with mirrors to confirm your beauty. Your male characters will be left behind except Hidehiko and Kobayashi.

The leftmost room has some drugged girls and Rumi stealing shit. Interact with her to get the lunch schedule and an H scene. You can't actually hand it over to Kazuna yet as she doesn't like women. You can wake up the girls who were drugged, they are references to an old TV show called Iron Chef and serve no real purpose. One of the rooms to the east should have a stat-up item, go up the stairs.

This floor only really has clubs, so check them out and go up to the 3rd floor. It is mostly the same here, but a girl at the north end of this floor is remembering the password to the student council room. Go there after checking out the other rooms.

The student council room is guarded by Earth Itamae Kanako (a reference to a character from Funny Bee. The password is actually a quiz, if you use what the girl before told you, you should pass. In my case it was 3-1-4-2-4-2-5 in case it isn't random. She disappears and you can go in. Grab the chest with a stat-up item and meet with the student council for some events. Mess with the sleeping girl for a scene and then go to the fishing grounds.

You get to see some more scenes and that have a 3 chain-battle with the Chinese cooking pirates, some more events happen after you beat them. You get to H Yamyam and she joins the party along with Honoka. All your units are set to 1, so heal. A word of advice on Honoka, don't invest in her as she'll leave near the end of the game.

As you return to Tentei to heal, a weird Heian aristocrat appears, but nothing terribly bad happens so just heal and return to the school.

Aya thanks you for her help and she goes back to the student council room. Follow her and notice that it is rather quiet. Suddenly you'll have to fight against hordes of crossdressers. Go to the student Council room for an event. The NPC crossdress encounters should now drop an Umineko key.

Using the Umineko key, open the 2nd floor door and talk to the girls. One will give you a set academic upgrades. Go outside to call in the guys as they enter and then go back inside to regroup with them. Kando and Shotaro should be in the same room on the 2nd floor. Bakuha is also on the 2nd floor, but you have to beat a crossdresser first.

After getting them back, go to Kazuna for some H. After some scenes, a save-chan will be outside. You can save if you want. The gymnasium is now open, so go there for some scenes and then take the stairs in the topleft of the building.

This is an underground maze. I'll note down the route that gives you the chests, other routes might either be dead-ends, empty rooms or loop back.

Go right first to activate the switch which opens the left gate, go through that and then north and left for a stat-up item. Go past the north split and then north over a suspicious plate, after the event press go past it and press the button.

Go back to the skipped north path and go west for some chests with a stat-up item and Rocket Parts (fuel) and then go back to the trap pudding and go south twice. Go west and walk over the spike trap (damages you) for a chest with a stat-up item.

Now go further south, then west and then north again for a chest with an H Photo. Follow the souther path for a button. I pressed it and the trap still worked, so maybe try not pressing it. Either way follow the path to a split, north leads to a button and a stat-up item, west to another stat-up item.

Now go south, south again and then west for an H photo and then go further south to a spit that goes west or south. Go west first to the outside loop and follow it all the way for a stat-up item. Now go back to the split and then south and east and follow that path to some lasers.

Keep following and you should run into a chest with a stat-up item. Go west at the next split to run into another trap and a split after. East leads to a chest with a stat-up item, same goes for north and west is the stairs. Go up the stairs for some events wich get you the mandate and further events to cap off this school.

Tentei 4/Overworld 4
The usual events happen. Go explore the courtyard area.

You should now be able to go to space, so go to the space center. You meet some bunnies there and you can have your genes preserved (H).

Now go towards Golden Industrial and win 3 fights in a row against the blockers, you'll get informed that Tentei is under attack. Go back and fight them off, they are the odd NPCs that showed up.

After this everyone is returned to their rooms. Aya has left hers which means you can molest Makura even further. This will lead to a game over so save before. After you did that, Aya should be at the spring in the courtyard so you can see her scene. You should also inspect the planters in the 2nd courtyard for a money flower to hand over to the store clerk to see her scene, you should be able to do it to any of the clerks except maybe the one inside of Tentei.

Now try to leave and you'll be informed that Honoka is missing, you'll find her in the courtyard for another seen. Leave and re-enter the building and go check on Hinako. Every time you do, re-enter the area for some progression till Alpha should be back (allowing for Hinako's skill to be used) and Hinako will now start her sidequest.

She is looking for the Phantom Milk. This is found in that no-pan bar, so go there and order it for a scene. Bring it back, re-enter and talk with Hinako for a scene.

This should be it for now, so go past the previous school you blew up and you'll run into Kimimaro and Sekimori MkIII for a battle. Afterwards continue on to the beach house and take the tour, she'll deposit you on the island and the only place you can go is the village.

At the village, interact with the crab statue and some events happen. You'll have a scene with Tsunami and she'll join. More events happen and you'll end up at the 2nd building of Golden Industrial.

2nd building
Your 3 guys are distracting them at the main building, so they won't be with you. Just walk to the right and enter the building. View some scenes and interact with Rumi behind the bars. After this the prison key should be able to be dropped by mobs, but interact with the other prisoners just in case.

The southern rooms have an H Photo and 3 stat-up items. After you get the key, free Rumi for a scene and the Hangar Key. Go to the Hangar and steal the helicopter.

1st building
Events should happen. The 3 guys have failed as usual. Shotaro is found immediately and the other two are just below the entrance. Grab them when you can. You might want to go back to Tentei to see a scene with Alpha. The guys blocking the rooms will continuously revive, so don't bother.

The southern section has a bunch of blocked doors that require an item to open, those stairs lead nowhere at first too as the routes are blocked and you need someone to beat them too.

Take the north stairs to the castella room. This is a pitfall room that is covered in a giant castella, so you can't see anything. The red parts of the pic are the holes, east is where you enter and north is where you want to go. As you go up, some scenes happen.

The 3rd floor has a puzzle where you have to order some creatures called Denki-kun's so they generate electricity. If they shine they will generate, if they do nothing or complain, they won't. The order is Devil, Normal, Flower, King, Chef and Bunny. A door opens to the south and you can grab the Hyper Solvent. The 4th floor is blocked as well.

Now that you have the solvent, you can open the southern doors on the 1st floor. As a sidenote, interacting with fallen G industry soldier forces you into battle. The rooms have 3 stat-up items and a girl in the NW room. This is Ikumi, the queen, so drag her along and present her to the 3 blocking underlings. It won't help, but she'll figure that if you sexually humiliate her it will break them.

Go back down to the 1st floor if you haven't and H Ikumi to free Sumako. Then go to the southern 2nd floor and do it again to get 2 stat-up items. The southern 3rd floor has no uses for now, so go back to the northern 4th floor and H Ikumi again. After this Horii, Satsuki and Saigou should join.

Now continue on to arrive in the chemistry lab. You need to get 3 items (3 fingered hand, black whip and white walking stick) to open the doors. The combination is shown on the doors, however there are more combinations you can try. It only checks for which 3 colours are used, the actual order does not matter. By doing this you can get some extra fights, items or skill upgrades to the leading party member.


 * Blue-Yellow-Black: Miki-chan appears and ups you humanities.
 * Blue-Yellow-Brown: Gedo slime/ゲド・スライム appears. Nothing happens.
 * Blue-Yellow-White: Majin Bubuzuke/魔神　ブブヅケ appears. He tries to make you magnet all your hardware. He then fights, can be refought.
 * Blue-Yellow-Red: Berobero appears, you shake hands and his comes off. You get a three-fingered hand.
 * Blue-Black-Brown: Suzanne/スザンヌ appears. She a gold digger girl. Nothing happens.
 * Blue-Black-White: Berabera appears. He gives you a black whip.
 * Blue-Black-Red: Beast, Beast Master appears (an MTG reference) appears. It gets pissed off after not getting new cards and targets you to reduce academic ratings, but hits Kobayashi instead. It healed me the second time.
 * Blue-Brown-White: Archangel Mamakari/大天使　ママカリ appears. He ups attack power.
 * Blue-Brown-Red: Drippy appears and ups your foreign language stat.
 * Blue-White-Red: Buratappumikopi come out, you created a monster. It will raise all your academic stats.
 * Yellow-Black-Brown: An Asian small-clawed otter appears. Nothing happens.
 * Yellow-Black-White: A denki-kun appears. Nothing happens, but now you know what synthesized it.
 * Yellow-Black-Red: Simone the bewitching bird appears. It shouts various forms of boobs in Japanese and wiggles them. Simone attacks.
 * Yellow-Brown-White: A Piyopi/ぴよぴー appears. Seems to hurt your unit.
 * Yellow-Brown-Red: Purupuru-chan appears, gets renamed numerous times and ponders its existence finally realizing it is only some chemicals.
 * Yellow-White-Red: Patricia come out, she is the only daughter of the Rabbit duke. She insults you and you get a bulwark.
 * Black-Brown-White: Bemubemu appears and he gives you a White Walking Stick.
 * Black-Brown-Red: Maruo/まるおー appears. The demon king ball, he fights.
 * Black-White-Red: Tap-Kun pops out, he raises the math rating.
 * Brown-White-Red: Plum's ghost appears. You fight it as it is annoying. It gives you 2 levels when beaten.

After you are done messing with this, press the 3 buttons in those rooms and get the 1 stat-up item and move on tho the 5th floor. After some events, get the 3 stat-up items in the right room. Then check the old computer. You need a tape, which is found in Ikumi's room next to the sound system. Go there and fetch it, it is not actually an item. After that go back for some events.

You'll be on the 3rd floor. Check out the other rooms before going to Yamada's for 2 stat-up items. Go to his room for events and that should be it for this section.

Tentei 5/Overworld 5
Same stuff as usual handle. Do any events you haven't done yet. For some reason Honoka wants you do deal with the Student Association HQ too, so you'll do that. There's also a giant building with Ikumi's face plastered over it in the courtyard.

It is found past Golden Industrial, so go there.

Student Association HQ
Steal the stat-up item in the room to the south. Sekimori blocks the path forward. To get past him you need to beat up Dr. Serizawa in a room close by. They'll give you the 01 key which opens the door above. After some event the power will be shut off and Sekimori MkIII DX is freed. The chest has a stat-up item.

After taking the elevator to the 2nd floor, check the NW, NE and SE rooms for stat-up items. The SE chest had nothing for me. The South center room has Sumako as a gift for you, so H her. She joins up after, you can interact with Yamada too if you want. Go to floor 3.

In this large horse-filled room you can find 5 stat-up items. The chairman is in the middle. After some events you'll have to go to his room on the 2nd floor at which point you'll just decide to blow up the building.

Some events happen and a giant palace comes up out of the ground to then immediately retreat. That will be your next destination.

Tentei 6/Overworld 6
Same stuff as usual. Do any events you haven't done yet. The dormitory has now been split into a male and female segment.

Go to the underground castle tip and enter.

Underground
This is the final area of the game. If you go forward you'll get trapped and some events happen. You'll get an easy fight with Honoka. Honoka and Sayoko are gone after this.

Go right and north to find a pickaxe, go left and north to break open a rest area and save point before passing the oil as that is a trap. Sachiko lived and wants to take revenge. She'll get stuck and you'll have to help her later on. You will fall into an underground cave system and will have acquired 15 more matches.

These matches are used to light the dark in this area, it will only map if you do so. There are exits to the bottom left and upper right, go upper right first.

To the left is a thick stone door you can't pass, go right to find a pickaxe, now go back to the caves and take the bottom left exit. Break through the thin wall to get mugged by Rumi, your money will be gone. grab the pickaxe to the left and go in the hole.

There is only 1 new exit so go left and up. The bottom left has a thin wall with some more matches behind it, going up leads to a new hole with just 1 new exit again. You'll find it in the east.

If you go east and south, you'll notice Sachiko is stuck. Go back to the weird stone path in the water. At the end you'll hear a click. Your goal is to step on the clicking rocks to create new paths. This isn't hard to figure out, so just follow the path. After you have opened it up you can raise the sluice gate to extinguish the fire. Interact with Sachiko to lie to her and get the dynamite. Go back to the thick rock gate and use it to get past it.

After some events you'll be exploring B1F. Going west will lead to a river of earthworms. You can't get past it yet. Going east will lead to a split. North is the room where Sayoko was held (you can pick up her clothes) and east to a residential area where you can kill everyone if you interact with someone (doesn't seem to do anything).

After exploring, beat Honoka and investigate the control room. A weakling interrupts you, but they are easy to beat. Afterwards they'll destroy the computers. Now go back to the river and you'll get flung across.

Just go forwards for the final scenes of the game. You'll have one final fight, but he shouldn't be too hard. After winning you'll H Sayoko and the ending sequence begins.