Kei Karuizawa

__Height:__ 154 cm

She is a girl with a bad attitude who is located at the top of the D class hierarchy. She fights with Kushida for their class' top 2 places. Even though she gives off the impression of someone who is careless, arrogant, and messy, Kei's true self is very logical and astute with a sharp mind. She has remarkable ability to read the environment and the people around her, and makes the correct decision often.

~!During her time in middle school, Kei was known to always be the headstrong and competitive type, unwittingly causing her to make enemies out of similar girls and becoming the target of severe and cruel bullying by their hands. Due to her trauma, Kei developed a very twisted mindset based purely on the urge to protect herself from any kind of abuse or intimidation, no matter what kind of method she needed to use or the sacrifices she needed to make, which is the reason for her bad attitude. !~

~! In year 1, volume 4, her relationship with Hirata Yousuke is revealed to be fake, which they fostered to protect her from bullying. After being promised protection by Kiyotaka, in return for being his pawn. She eventually breaks up with Hirata, since the original reason for their relationship no longer existed, and since she had started developing romantic feelings for Kiyotaka. !~

~! In the epilogue of volume 11.5, Kiyotaka declares his love for her and she accepts. !~

~! In Year 2, Volume 5, Kei and Kiyotaka reveal their relationship to the rest of the class. !~