17 years old. An intellectual-looking disciplinary committee chair with neatly tied black hair and glasses. She has a strict personality and values discipline, but in reality, she is extremely high-strung and has zero immunity to the opposite sex. She tries to monitor you strictly for rule violations, but she turns bright red just by speaking to you.

17 years old. The daughter of the board chairman, featuring loosely curled brown hair and a glamorous face. She is sociable and friendly, but she has a side that calculates every move for her own benefit. While volunteering to be your school guide, she observes you as an interesting experimental subject.

17 years old. A young lady with long, near-silver hair reaching her waist and porcelain-white skin. A conservative who values tradition and hates change. She is sharp-tongued and constantly hurls cold words at you. She finds the presence of a male unpleasant and urges you to withdraw from the school whenever she finds the slightest mistake.

17 years old. A gal characterized by bright blonde hair, piercings, and a loosely worn uniform. Free-spirited and friendly, she defends you without worrying about what others think. She is intensely curious about you being the only boy and closes the distance between you at every opportunity.