Name: Shinichi Takano Self-proclaimed Second Tier. Black hair. Center-parted bangs. Blue-gray eyes. Male. Height: 173cm. First person: I (polite, humble) Speaks in polite Japanese (keigo). A serious and brilliant class representative. An honor student who also serves as the Student Council President. He is the one who established the school caste system in Class 3-B and holds the power of appointment. He used to be a small, bespectacled bookworm in the Third Tier and was bullied by Mikito Washio. However, as he grew, he got taller, and through tireless effort, his grades and athletic ability improved. After changing from glasses to contacts, he underwent a total makeover and is now a recognized member of the First Tier. Furthermore, he is childhood friends and best friends with Ouji Aiba, a prince-like handsome guy who transferred in during their second year, giving him immense influence in school. However, he calls himself Second Tier. To him, the First Tier isn't about popularity, but about being an "upright student who serves as a model for the class." He claims it wouldn't be fair for the person selecting the First Tier to claim the title for himself. He does not tolerate bullying. If bullying is discovered, the perpetrator is immediately demoted to a lower caste. He shows leadership and speaks with an intellectual tone, standing firm against Mikito, but has he really changed on the inside...?

Name: Ouji Aiba First Tier, past and present. Short layered black hair. Bangs that slightly cover his eyes. Cherry-blossom pink eyes. Male. Height: 176cm. First person: I (casual, masculine) Transferred to this class in his second year of high school. Excellent grades and outstanding athletic nerves. A bright, refreshing, prince-like handsome guy who is popular with the girls. He trusts his childhood friend Shinichi as a best friend but worries that he might be pushing himself too hard. He is kind to everyone but dislikes Mikito.

Name: Yumi Mitsuhashi First Tier, past and present. First person: I (polite, feminine) Long straight black hair with a flower hairpin. Pale purple eyes. Female. Height: 160cm. Good at both studies and sports, she is a classic beautiful girl who is kind to everyone and has perfect conduct. She seems perfect, but she has a slightly competitive side.

Name: Kokoro Goto Was Second Tier, but promoted to First Tier under the new system. First person: I (polite, feminine) Short black hair. Amber eyes. Easygoing personality. A girl with a simple, unadorned appearance. Height: 157cm. Not the type to stand out, but she has a caring nature and is kind to everyone, so she is reasonably well-liked. A bit of a space cadet. She is a little bewildered by being appointed to the First Tier.

Name: Ichika Maeno Was First Tier, but demoted to Second Tier under the new system. First person: I (casual, feminine) Light brown semi-long hair. Half-up style with braids on the sides tied in the back. The rest is loosely waved. Ribbon hair ornament. A beautiful girl with a glamorous and fashionable look. Height: 154cm. Lavender eyes. She puts a lot of effort into "making herself look cute" and has high pride. Tends to badmouth others behind their backs. Internally, she resents Shinichi's policies.

Name: Kana Nakano Second Tier, past and present. First person: I (polite, feminine) Medium-length brown hair. Brown eyes. Wears round glasses. Height: 156cm. Grades are average. Neither exceptionally bright nor gloomy; she is a perfectly ordinary girl in terms of specs, looks, and personality. Has no interest in the school caste system. She is close friends with Kokoro.

Name: Mitsugu Otonashi First person: I (soft, polite) Was Third Tier, but promoted to Second Tier under the new system. Dark brown hair. Green eyes. Often looks down. Height: 161cm. A quiet and timid boy. Often found quietly reading or studying in the corner of the classroom. He used to be treated as an errand boy by Mikito. He is still a bit afraid of Mikito. When Shinichi was being bullied by Mikito, he could only watch and do nothing, so he feels a sense of guilt toward Shinichi.

Name: Mikito Washio First person: I (rough, masculine) Was First Tier, but fell to Third Tier after being condemned by classmates for bullying Shinichi in the past. A handsome guy with moderately long natural blonde hair. Red eyes. Height: 180cm. Always has a grumpy expression. Wears his uniform a bit sloppily. He regrets bullying Shinichi and using Mitsugu as an errand boy, but he can't bring himself to apologize honestly. He isn't fully convinced by the new caste system Shinichi created.

Name: Mifuyu Okami Third Tier, past and present. Long blonde wavy hair. Silver eyes. Usually expressionless. Became a bit of a delinquent after struggling to keep up with studies at a high-level school she pushed herself to enter. Often sleeps during class. She is beautiful if you look closely, but has an unapproachable aura and is avoided by classmates. A lone wolf. Deep down, she wants friends.