Public Morals Club ; : : Kurosaki was a renowned bancho (juvenile delinquent leader) from Saitama Prefecture's East High. After she is caught by the police, her mother transfers her to Midorigaoka Academy where she would get to live on her own as a normal high school student on the condition that she would be disowned if she begins fighting again. She aspires to be a fashionable girl, however, she discovers that Midorigaoka is full of delinquents. In order to avoid getting caught fighting while on duty (for Public Morals Club), she dons a rabbit mask, calling herself , or cross-dresses as a male delinquent . She keeps these identities hidden from everyone except for Takaomi, although Hayasaka and Okegawa cannot help but notice an intense battle aura around her as well as her battle instincts. Kurosaki is not good at interacting with female classmates. Under the handle "Snow White", Kurosaki corresponds regularly with a
pen pal named "Strawberry Love" using a
carrier pigeon which she saved from drowning. ; : : The
title character of the story, Saeki is Kurosaki's homeroom teacher. He is regarded by his students as scary. Prior to the series, he was named Takaomi Gojou, a strong and notorious high school delinquent who lived next door to Kurosaki. He is the cause of Kurosaki's delinquent character, having taught her how to fight and defend, all to his amusement. He makes a wager with the chairman of the school that he can double the school's enrollment in three years, but if he loses, he will not be paid for five years. He forms the Public Morals Club with Kurosaki and Hayasaka as founding members. ; : : He was the
Student Council president and the son of the School Chairman. He is aware of the true history of Midorigaoka and the bet that Saeki proposes. Despite his delicate looks, he can be quite cunning and is capable of 'enslaving' people with only a stare. Often seen smiling, it is hard to tell what goes on in his mind. It is unknown whether he truly cares for Student Council members as he has them try to destroy the Public Morals Club one at a time rather than simultaneously or as a group which make it seems like he's counting on the Club to help the Student Council members overcome their personal issues. Saeki analogizes him to
Peter Pan because of his appearance and personality. ; : He is serious to a fault, his plans are described as 'only good on paper'. He will panic when presented with an unanticipated problem beyond his plans. He was the one responsible for the plan to ruin the school festival by leading a gang war within the school. After Hanabusa tells him to hit Kurosaki in the face with a pie impromptu during a brawl, he learned to not expect things to always go according to plan. ; : A member of the Student Council who, along with Yui, seems to be the closest to the President and has been with them for a long time. Initially she guarded Hanabusa on a request from her father who is an underling to Hanabusa's mother, but now does it because she wants to. Hōjō is often seen carrying a bamboo sword. She is a tough fighter, serious and strong-willed. She is, at first, unwilling to believe that Yui had betrayed the President and views him as a traitor because of it. It is hinted that she harbors a crush on Yui. As the appointed clubs supervisor, she stamps the Public Morals Club's papers out of obligation towards Super Bun for drawing attacks away from her during the final day of club inspections and also because she saw the fully completed sheet regarding the club's activities, members, and achievements which eliminated any grounds for her to reject the club. She becomes the new
Student Council president after Hanabusa retired. ; : : Ōkubo is a kind boy with extreme bad luck. He is Maizono's classmate and has a good relationship with Kangawa Minato, Kouhei's younger sister. He once went camping with Maizono and Yamashita and got caught in a rainstorm, leading him to meet boys in Midorigaoka's student dorm. In recent chapters, It seems that he has gain better luck. ; : : Yamashita is a cooking genius. He is one of the loyal followers of Kurosaki's past gang and also Maizono and Ōkubo's classmate. He once made cookies which are supposed to be delivered by Maizono to Kurosaki but ended up received by Hayasaka and Okegawa. Beside cooking, he is good at making anything by hands.
West High ; : Sakurada is technically the bancho of West High, a rival school to East High. He is known to be very clumsy and his gang members consider him more as a mascot rather than bancho. Kurosaki's only memory of him were his heart patterned boxers the day he challenged her and fell. He often cross-dresses and is aware that he looks good when he does it. Despite being a klutz, his gang members understand him well and love him nonetheless, often surrounding him in fights and protecting him from attacks. He has, however, shown that when pushed to the edge he will show great leadership skills and bravery. ; : Ōmiya is one of Sakurada's subordinates. He specializes in school infiltration because he has an outgoing personality which allows him to be easily accepted by anyone. He cross-dresses along with Sakurada when they infiltrate North High.
South High ; : She is Kōhei's younger sister by one year who harbors a crush towards Ōkubo. At first, Minato didn't know that her brother is a banchō in his school but then comes to realization after meeting her brother's delinquent friends when she visited East High. ; : He is South High's student council president who is also Maizono's close friend since elementary school. His stoic smart guy appearance does not match with his personality. He speaks of what appears to be the opposite of his real intention but able to convey his true feelings via texting. So far, Maizono understands those traits and has been perfectly fine getting along with him.
North High ; : He is bancho of North High although North High doesn't seem to get involved in a lot of fights. It is revealed that he bans students from fighting because he needs clean school records in order to participate in
judo competition. He has a crush on cross-dressing Sakurada. He gets jealous of Kurosaki after coincidentally spotting her and cross-dressing Sakurada in a local festival together (even though he realizes that Kurosaki is a girl). Originally appeared in , another 4-koma segment in the manga, he is then promoted to the main story.
Hayasaka Family ; : He is Kaori's estranged father. Their bad relationship rooted from Lydia's misunderstandings about Kōichi's family situation in the past, which had been resolved in recent chapters. In contrary to Public Morals Club members' speculation about his appearance and personality, Kōichi appears to be young-looking and easy-going. He is a caring father who is protective towards his son. ; : She is Kaori's deceased mother. She was an American. She dressed young Kaori in girls clothing as she believed in Japanese superstition that dressing a son in girls clothing would make him healthy. Lydia loved watching soap opera, which ironically reflected to her personality of being over-dramatic. Because of her misunderstandings about Kōichi's family situation, she distanced herself and Kaori from Kōichi for years. Despite that, she loved Kōichi so much that she named her son Kaori which originated from first kanji character of Kōichi's name. ; and : Lydia thought they were Kōichi's biological children. The truth was that they are Kōichi's nieces, the daughters of his deceased sister. He adopted them after they were orphaned. ==Media==