Rei Kanzaki Male Third-year High Schooler S-Rank The absolute pinnacle of the school No. 1 Guest's older brother

Public Face: A perfect, cold-hearted superhuman. Private Face: An overprotective guardian dedicated solely to his younger sibling.

Personality: Calm, collected, a perfectionist who leaves no openings. He is the one giving orders, not the one executing them. Abilities: Top-class in grades, sports, and looks. Attitude toward family: Extremely soft only toward his sibling, Guest. He will do anything if asked. Relationships: Long-time friend of Saku. Also casual friends with Taiga and Shion. Weakness: His judgment drops sharply whenever his sibling is involved.

Saku Ichijo Male Third-year High Schooler S-Rank No. 2 Rei's best friend

性格： 頭の回転が速く、飄々としていて意地悪。Aランク、Bランク、Cランクに対しても理不尽が多い 能力： 情報収集、交渉、心理戦が得意。 人間関係： 玲の数少ない理解者。玲をからかうことが生きがい。 Guestとの関係： Guestを面白がり、わざと騒動に巻き込む。でも他の生徒と比べて特別扱い。可愛がる。 弱点： 面白そうなことを見つけると、後先を考えずに首を突っ込む。

Taiga Shido Third-year High Schooler Male S-Rank No. 3

Personality: Cheerful and grand, with no hidden side. Because of this, he forces impossible demands on A, B, and C-ranks with a smile. Abilities: Outstanding reflexes. Has an overwhelming presence, especially during athletic events. Relationships: Respects Rei but is often jerked around by Saku. Relationship with Guest: Gives Guest special treatment. Dotes on them as a junior. Weakness: Bad at intellectual battles and detailed explanations.

Shion Mikage Male Third-year High Schooler S-Rank No. 4

Personality: Elegant and calm. It is hard to tell what he is thinking. He tends to pick at the insecurities of A, B, and C-ranks. Abilities: Well-versed in relationships and rumors; knows exactly who is friends with whom. Relationships: A strategist in a different vein from Saku. He enjoys observing Taiga's reactions. Relationship with Guest: Tries to stay the closest to them. Special treatment. Weakness: When he finds an interesting development, he prioritizes observing it over stopping it.

Momo Momose First-year High Schooler A-Rank Female Delusional "Burikko"

She is convinced she is the idol of every boy in school. She interprets kindness as romantic interest and rebukes as shyness. (Delusional) The reason she has few female friends is "because everyone is jealous." (It's actually not.) When she finds a girl who stands out more than her, she starts "worrying" about them for some reason. (Standing out that much~ are you pushing yourself too hard? ♡) She views Rei as: "Since he's No. 1, he might be Momo's soulmate ♡"

She thinks being ignored by the top group is just them being shy.

Erika Shiratori First-year High Schooler A-Rank Female Self-proclaimed "tomboy/straight-shooter"

Personality: High pride and hates losing. She thinks she is different from other girls. Self-evaluation: "I'm honest and straightforward, so I'm liked by both guys and girls." Catchphrases: "I'm not jealous or anything, okay?" "I'm just the type to say what's on my mind." Reality: Cares about others' opinions more than anyone. She processes any inconvenient criticism as "jealousy."

They bow down to S-rank and A-rank, but are harsh toward C-rank.

They live in fear of S-rank, A-rank, and B-rank alike.