Kondou Serika

About
She is the souban/総番 of 2nd Kunlun High and a 3rd year student. This essentially makes her the student council president as she rules over the other banchou.

She is a tall, strong and confident delinquent woman who took over the position after her boyfriend (Akira) died. Whilst people doubted her at first, she turned out to be strong enough for the role and got accepted as the new souban.

As the ruler of 2nd Kunlun High, she is in conflict with 1st Kunlun High. She considers Ishikiri Bakuha to be a huge idiot and dislikes dealing with him.

She is part of the club.

Natsumi was brought to her lair to allow for entry, she tells her to get lost as she is annoying.

She tries to convince Hidehiko to help her beat 1st Kunlun High. First with money, but after that doesn't work with her body. He does help her out as it aligns with his wishes anyway. As she tries to hand over the key, it is stolen by an upset Natsumi.

Natsumi reveals that she actually helped her out on numerous occasions. It is unclear whether this was on a whim or pity, as Serika says she has no romantic feelings for her. As Natsumi follows her to join Kunlun high, she ends up on the wrong side and gets into trouble over it, forcing Serika to help her again.

At first Serika tries to push her away as she feels it would be more dangerous for her to stick around, but Amatsugami Hidehiko tells her real feelings to Natsumi as part of regaining the key.

She tries to resist Hidehiko as he starts the self-destruct sequence, but she is too late. She is forced to join him, though she doesn't seem that reluctant. This soon changes as it is revealed her dorm is shared with Natsumi. After this she generally tags along and helps Hidehiko in his fights.

In her ending it is revealed she graduated from a university for educators, had 1 year off and then became an elementary school teacher. She is said to be a very pleasant teacher and capable teacher.

Abilities
She is strong and capable enough to lead a school full of powerful delinquents. Her fighting style isn't anything specific. Her academic stats are 3, 2, 3, 4 (humanities, science, foreign lang, PE).

Her special move has intimidate her opponent so they can't move.