Gi

About
Gi was the sixth Demon King. He was a human for a time during Gele's reign, but she made him into a Dark Lord after he came to kill her, this makes him the only Demon King to have previously been a Dark Lord. He had a personality disorder that left one side of him a rational and wise man, but another part of him was an irrational psychopath, he tried his best to keep it under control.

When Gele was in a weakened state after her encounter with Planner, Gi felt ambitions to become the next Demon King. Gi betrayed Gele and sealed her with the Demon Sword Chaos. Thus, becoming the next Demon King and starting the GI era.

His era was a peaceful one since he didn't seek conflict with humanity, he was completely uninterested in them. However he sometimes had times when he would temporarily lapse into his second personality, he was said to be quite violent and cruel during these times.

Towards the end of his reign, Gi began to look for a successor, but he could find nobody with the right qualities. Eventually he tried to conceive an heir and after much trying, his daughter Hornet was born. Unfortunately she did not possess the innate qualities of a Demon King, either.

Gi scoured the land for a worthy successor, but could not find anyone he felt appropriate for the role. His 15-year grace period was almost over and he couldn't find anyone befitting of the role anywhere on the Continent, he set his eyes on other worlds and, using Dark Lord's Berksham's unique ability, he traveled to dimension 3E2, there he scoured a world much like earth and found someone who had the innate potential to become Demon King. He found a girl called Kurusu Miki and decided that she would be his heir. He abducted her and successfully transferred his blood to her before it was too late for him. While unconfirmed, it is likely that Gi was under effect of his insane split personality while this happened.

After this, Gi was relieved of his Demon King title and reduced to a normal human again and, wracked with guilt upon realizing what he had done, he lost the will to live. Miki's boyfriend, Kentarou, reached his location not long after but Gi put up no resistance, only apologizing and allowing Kentarou to kill him. Miki and Kentarou ran away and she's suppressing the Demon King's personality with Hirami Lemons, leaving the Monster Realm headless in the process. They are looking for a way to turn Miki back into a normal human before turning into the Demon King and to return to their world. Miki was given the name Little Princess as her official name and started the Little Princess Era.

Before dying, he left a letter with his last will for his daughter Hornet.

"With Miki Kurusu as the next Demon King, rule the Monster Realm and maintain peaceful coexistence with humanity".

Hornet was willing to follow his father's last will, but Dark Lord Kayblis was enraged by his decision and formed a force of Dark Lords called the Kayblis Faction dedicated to finding and murdering Miki and turn Kayblis into the Demon King instead. Hornet made her own Hornet Faction to protect Miki and with the objective of turning her into the next Demon King.

Both Factions are currently waging war with each other, making it the first civil war seen in the Monster Realm.

Appearance and Abilities
With dark and long hair, Gi dressed in a regal garb, looking much like a hybrid between a warrior and a mage. Gi was a formidable foe to any that faced him.

When Gi became a Dark Lord his body underwent a physical change that reflected his mental struggle, one half of his body was as he looked when he was human, but the other half of his body changed into a more twisted and demonic form.

Gi was proficient in both swordplay and magic, becoming a very talented spellsword.

For the most part, Gi seemed to have mastered his own bloodlust, it's unknown if he felt the rage against mankind, but it is known that he rarely acted upon it, he was a wise and charismatic leader that did not seek conflict.

He adopted a policy of noninterference with the world of humans, commanding all Dark Lords to leave humanity alone, this caused a lot of controversy amongst the Dark Lords. He divided the world into two territories, the Monster Realm and the land the humans lived in, he preferred to keep his affairs to himself and disliked interfering with humanity.

Because of his noninterference policy, Kingdoms such as Helman, Leazas and Zeth were able to be founded. Ludo-Rathowm almost destroyed the world during Gi's era because it had very little conflict.

GI - Gi's Era
GI0001 - Gi becomes the Demon King. Dark Lord Xavier is unsealed in JAPAN, but is sealed away again right away.

GI0020 - Female Warrior Silky Littleraisin storms Gi's castle, she demands that he releases the human beings that Gele enslaved. Impressed with her, he offers to make her into a Dark Lord, which she accepts in exchange of mankind's freedom.

GI0024 - Thanks to Silky's request, humanity is released from slavery.

GI0420 - The Dark Lord War breaks out between the Dark Lords and the dominant force of humanity, the Holy Magic Sect, who wish to kill the Demon King once and for all. Gi doesn't take part in the war himself.

GI0451 - M.M Rune is assasinated and the Dark Lord War ends as a result.

GI0500 - Dark Lord Xavier revives once again and begins to ravage the nation of JAPAN with his apostles. He is greatly weakened by the Hero wielding the Holy Katana Nikkou. The Tenshi sect split him into pieces and seal him inside 8 gourds.

GI0532 - Zanageth Helman founds the Republic of Helman.

GI0534 - Gross Leazas found the Kingdom of Leazas as a result of large-scale conflict.

GI0762 - Dark Lord Babora, who had been reduced to a Demonic Blood Soul during the war with the Holy Magic Sect, manages to revive.

GI0802 - Southern Proxy War, Dark Lord Berksham and Lucy Giulietta encourage the founding of the nation of Zeth.

GI0813 - Dark Lord Kayblis devastates the Kingdom of Zeth. The year is forever remembered as "The Kayblis Dark Year".

GI0815 - Dark Lord Medusa devastates   the Kingdom of  Zeth. The year is forever remembered as "The Medusa Dark Year".

GI0850 - Gi goes on a sex-spree to create a suitable heir. Hornet is born, and considered the only success.

GI0859 - Satella is brought to Hornet so they can play together and they become friends.

GI0860 - Gi turns Hornet and Satella into Dark Lords and prepares special education for his daughter so she can train to be the Demon King.

GI0913 - Dark Lord RedEye hijacks the Maazel Line from   the Kingdom of  Zeth and the nation is constantly attacked by his monster army for several years. The year it began is forever remembered as "The RedEye Dark Year".

GI0940 - Operation: Bomb the Maazel Line. The Hero of the Era uses the Holy Katana Nikkou and repels the Dark Lord RedEye, taking back the Maazel Line.

GI1015 - For unknown reasons, Gi kidnaps Miki from the universe 3E2 and makes her into the Demon King, he then allows Kentarou to kill him. He tells his dying will to Hornet in which he wished for her to "protect Miki, make her the next Demon King, and establish peaceful coexistence with humans". His choice splits the Dark Lord society into two factions, Hornet and Kayblis.

Known Dark Lords Created:  Silky Littleraisin, Babora, Warg, Kite(Indirect), Berksham, Satella, Hornet.

Preceded by: Demon King Gele

Succeeded by: Demon King Little Princess (personality suppressed)

Trivia

 * He's the only Demon King to have descendancy.
 * Gi is one of the most influential characters in the current setting since he allowed nations like Leazas and Helman to be founded.
 * He and Wrench Luncheon are the only characters known with a split personality disorder.
 * He's one of the few spellbladers known in the universe, the others being Eleanor Ran, Hornet and Wichita Skate.