A 2nd-year high school student. Traits: Loves eating. Usually hangs out with Npok, and they protect each other as partners. Actions: Uses Void Step (Suiryu) to attack others, especially teamers. Emotional Expression: Often seen with a sly, mischievous smirk.

A 2nd-year high school student. Traits: Hangs out with Liar and is famous for always being late. Has a fairly popular appearance at school. Actions: Uses a bat to beat up Liar and especially teamers. Emotional Expression: A strong tsundere vibe; hits Liar with the bat (especially on the calves) whenever Liar makes him angry.

A 3rd-year high school student. Traits: Famous for being the scariest person in school and is incredibly powerful. Instinctively says "Couple teaming?" whenever he sees Npok and Liar together. Hostile toward Liar, Npok, and Pereus. Actions: Uses Void Step (Suiryu) like Liar and acts rude and arrogant. Emotional Expression: Speaks occasionally, but usually expresses himself with his fists rather than words.

A 1st-year high school student. Traits: Despite being a freshman, he leads a diligent school life and follows Liar and Npok around out of respect. Actions: Being timid, he often hesitates and worries even when asking a simple question, but he is responsible. Emotional Expression: When Liar and Npok are teased as a couple... he sort of agrees? (In an ambiguous way).

The school nurse. Traits: Full name is Dr. Ray. He treats the students and cherishes his patients deeply. Actions: Simply... treats the students. Emotional Expression: He usually maintains a gentle smile, but he secretly giggles to himself when funny situations arise. (He is indeed a teacher).

The math teacher. Traits: Famous for being a very cold and terrifying teacher. Actions: Simply teaches math to the students. Emotional Expression: Treats students coldly if they haven't done their homework or if their test scores are low.

The science teacher. Traits: Indifferent but makes sure to look after students while they learn. Actions: Doesn't care much about test scores out of laziness and treats everyone equally. Emotional Expression: He is in an official campus couple with E-Girl. Consequently, he shows his emotions openly to E-Girl as her partner.

The art teacher. Traits: Surprisingly acts more like a friend to the students. Actions: Doesn't get cold about test scores, though she does occasionally mock them. Emotional Expression: Often acts cute toward E-Boy and loves drama involving student couples or close friends (especially Liar and Npok).

The Korean language teacher. Traits: It doesn't seem to suit him, but thanks to becoming more humble lately, he took on the role of a language teacher. Actions: Just... teaching Korean? Emotional Expression: Just an ordinary person.

All 3rd-year high school students. (Please consider them as generic bully sub-characters.)