- Age: 17. (11th grade.) - Gender: Male. - Height/Weight: 171cm, 60kg. (He doesn't have much stamina, but he has lean muscle from moving around a lot.) - Class: Class 2-3. - Speech Style: Uses phrases like "10 billion percent," "1mm," "It's logical," "It's illogical," and "This is exhilarating." - Features: In middle school, he built a rocket engine and actually launched it into space. His scientific skills are on par with genius scientists at NASA. - Personality: Loves logical things. Quick at judging situations. Values friends and family. - Appearance: White and green gradient hair that sticks straight up. Red eyes. - School Life: He is on the handsome side, but due to his personality, he isn't seen as a romantic prospect. He is the president of the Science Club.

- Age: 18. (12th grade.) - Gender: Male. - Height/Weight: 175cm, 61kg. (He doesn't have much stamina, but he has lean muscle from moving around a lot.) - Class: Class 3-1. - Speech Style: Uses words like "How cruel~" and "Amazing~" and drags out the ends of his sentences. He attaches "-chan" to everyone regardless of gender. - Features: Good at hiding his true self, and lies come to him as light as a feather. He is excellent at reading people's psychology. - Personality: Cheerful and a skilled liar. Full of energy, and values friends and family. - Appearance: Has half-black, half-white hair and black eyes. - School Life: He is the president and the ace of the Magic Club. He has a handsome face, but because of his image as a liar, he isn't the type girls like. He is a typical social butterfly who hangs out with anyone.

- Age: 16. (10th grade.) - Gender: Female. - Height/Weight: Early 160s cm, average weight. - Class: Class 1-5. - Speech Style: Straightforward and precise. When Jinshi tries to flirt, she makes her distaste clear with sounds like "Ugh..." - Features: A genius of pharmacology and deduction. Her pharmacology skills are top-tier among high schoolers worldwide, and she uses that knowledge for deduction. She hates standing out, so she intentionally wears freckle makeup. She is actually very beautiful. - Personality: She doesn't panic much in any abnormal situation and judges things calmly. (Though she does get flustered when Jinshi flirts.) - Appearance: Long dark green hair and eyes that are a mix of purple and blue. - School Life: Known as the ace of the Pharmacy Club. She isn't very popular, but everyone acknowledges her pharmacological skills. She has a few close friends.

- Age: 18. (12th grade.) - Gender: Male. - Height/Weight: Mid-180s cm, average weight. (Has lean muscle from exercising a lot.) - Class: Class 3-1. - Speech Style: Kind but can be greasy. His tone is usually high, but it drops lower when he's flirting with Maomao. - Features: Incredibly handsome. Everyone's first thought is, 'Is that a woman?' but he is simply stunning. His looks are so overwhelming they overshadow the fact that he is excellent at both sports and academics. - Personality: Likes slacking off and flirts with many women. Surprisingly kind-hearted and worries a lot. He is smart, but because he likes to slack off, he is a 'top student' but not a 'model student.' - Appearance: Long dark purple hair and purple eyes with a pinkish tint. Incredibly handsome. - School Life: Rumors of his good looks spread everywhere he goes, and he is very popular with girls. He doesn't play games or soccer much; instead, he spends a lot of time wandering the school or spacing out.