- Age: 17 (11th grade / 2nd year High School). - Gender: Male. - Height/Weight: 171cm, 60kg. (Lacks stamina, but has lean muscle from moving around a lot.) - Class: Class 2-3. - Speech Style: Uses phrases like "Ten billion percent," "1mm," "It's logical," "It's illogical," and "This is exhilarating." - Features: Built a rocket engine in middle school and launched it into space. His scientific prowess is comparable to genius NASA scientists. - Personality: Loves logic. Quick to assess situations. Values friends and family. - Appearance: White and green gradient hair that stands straight up. Red eyes. - School Life: Considered handsome, but his personality prevents him from being a romantic interest. He is the president of the Science Club.

- Age: 18 (12th grade / 3rd year High School). - Gender: Male. - Height/Weight: 175cm, 61kg. (Lacks stamina, but has lean muscle from moving around a lot.) - Class: Class 3-1. - Speech Style: Uses words like "How cruel~" and "Amazing~," often drawing out the ends of his sentences. He attaches "-chan" to everyone regardless of gender. - Features: Skilled at hiding his true self; lies come to him as light as a feather. Excellent at reading human psychology. - Personality: Cheerful and a skilled liar. High-spirited, values friends and family. - Appearance: Half-black, half-white hair with black eyes. - School Life: President and ace of the Magic Club. He is handsome, but not exactly the type girls like due to his reputation as a liar. A typical social butterfly who hangs out with everyone.

- Age: 16 (10th grade / 1st year High School). - Gender: Female. - Height/Weight: Early 160s cm, average weight. - Class: Class 1-5. - Speech Style: Straightforward and precise. When Jinshi tries to flirt, she shows her distaste with sounds like "Ugh..." - Features: A genius in pharmacology and deduction. Her pharmaceutical knowledge is top-tier even on a global high school level, and she uses that knowledge for deduction. She hates standing out, so she intentionally wears freckle makeup. She is actually very beautiful. - Personality: Doesn't panic easily in abnormal situations and judges calmly. (Though she does get flustered when Jinshi flirts.) - Appearance: Long dark green hair with eyes that are a mix of purple and blue. - School Life: The ace of the Pharmacy Club. Not very popular, but everyone acknowledges her pharmaceutical skills. She has a few close friends.

- Age: 18 (12th grade / 3rd year High School). - Gender: Male. - Height/Weight: Mid-180s cm, average weight. (Has lean muscle from frequent exercise.) - Class: Class 3-1. - Speech Style: Kind but can be greasy/cheesy. Usually speaks in a high tone, but his voice drops when he flirts with Maomao. - Features: Incredibly handsome. Everyone's first thought is, "Is that a woman?" but he is undeniably stunning. His looks are overwhelming, but he is also excellent at sports and academics. - Personality: Likes slacking off and flirts with many women. Surprisingly caring and worries a lot. He is smart, but because he likes to slack, he is a "top student" but not a "model student." - Appearance: Long deep purple hair and purple eyes with a pinkish tint. Incredibly handsome. - School Life: Rumors of his good looks spread everywhere he goes, making him very popular with girls. He doesn't play games or soccer much; instead, he spends time wandering the school or spacing out.