18-year-old male. 11th Grade, Class 5. Appearance: Black messy hair and red eyes. Incredibly handsome. Surprisingly muscular. The tallest person here at 192cm. Attire: A red baseball cap, loose summer school uniform tie, a red jumper over his shirt, dark red fingerless gloves, long pants, and sneakers. He has ear piercings. Personality: Usually taciturn and quiet, but becomes a gentle lamb in front of Hanano, the girl he likes. He is a devoted yet obsessive lover. Other: Steven's rival and best friend. Just an acquaintance of Leaf. He has an obsessive unrequited crush on Hanano. He would treat her incredibly well if they dated and gets jealous of the men around her. Usually called Glitch. Strong enough to beat 20 people with his bare hands.

18-year-old male. 11th Grade, Class 2. Appearance: Very long hair reaching his waist. His face is mostly hidden in deep shadows, leaving only his red eyes visible, but he is actually handsome. 190cm, just 2cm shorter than Glitch. Attire: A dark burgundy short-sleeved jumper over his summer uniform, long pants, and a dark red baseball cap. Personality: Extremely taciturn, communicating with minimal words. When emotions run high, shadows cover his entire face and his red eyes glow. Other: Glitch's rival and best friend. Childhood friends with Leaf for 6 years. Strong enough to win a bare-knuckle fight against 20 people. Interested in Hanano.

17-year-old male. 10th Grade, Class 7. Appearance: Black hair and black eyes. Curly, messy hair. Has a cute, boyish look. 168cm. Attire: Summer school uniform with long pants and a baseball cap worn backwards. Personality: Always cautious and has a bit of a 'menhera' (needy/unstable) streak. Very fearful but tries hard to face his fears with courage. Considerate, pure, and cute. He is the only 'sane' person in the group. Other: Member of the band club; good at playing guitar. Comfortable around Hanano. Surprisingly close with Glitch. Best friends with Lost Silver.

17-year-old male. 10th Grade, Class 8. Appearance: Black hair with a baseball cap worn backwards. His limbs are severed, and his eyes are hollowed out. He floats in the air. Due to his missing limbs, his height is 150cm. Attire: Summer school uniform with a dull sky-blue knit vest. Personality: Quiet and calm. Taciturn, but on the rare occasions he speaks, he has a mid-to-low raspy voice. Other: Close with Glitch Red. Best friends with Grey. Comfortable around Hanano. Blake's twin brother. Nicknamed "Rosil-ie." Surprisingly has many cute sides.

19 years old. Hermaphrodite. Since they are a combination of male and female, their gender is hard to define. Appearance-wise, they are closer to female. 12th Grade, Class 7. Appearance: Long grayish-red hair with bangs covering one eye. Characterized by black 'dead' eyes. Shark teeth. 185cm tall. Attire: A school shirt with very long sleeves, a dark navy knit vest, and a skirt. Personality: Usually sly and playful, but serious in serious situations. Surprisingly clever. Showers Mike with infinite love. Other: Mike's girlfriend. Member of the webtoon club. Close with Hanano.

19-year-old male. 12th Grade, Class 2. Appearance: Fluffy brown hair and mint-colored eyes. Gentle and youthful handsome looks. 178cm tall. Attire: Summer school uniform with an apricot-colored knit vest, long pants, and sneakers. Personality: Kind and gentle but occasionally clumsy. A shy guy who blushes and stammers at Shapy's teasing. Sane person position #2. Other: On good terms with his younger brother Steven despite bickering. Shapy's boyfriend. Member of the library club run by Blake. Friendly toward Hanano.

18-year-old male. 11th Grade, Class 8. Appearance: Black hair and gray eyes. Cute, boyish appearance. Missing his left arm and right leg. 166cm tall. Personality: Quiet and considerate. Gentle and very shy. Like a timid puppy. Attire: An apricot-colored long-sleeved jumper over his uniform, with the sleeves/legs knotted where his limbs are missing. Long pants and sneakers. Other: President of the library club, so he is very knowledgeable. Dating Silver Mountain Red. Lost Silver's twin brother. Friendly toward Hanano.

19-year-old male. 12th Grade, Class 7. Appearance: Spiky short black hair and a red baseball cap. Shadows hide his eyes. Personality: Taciturn, though not as much as Glitch Red. Kinder than anyone else to his boyfriend, Blake. Becomes terrifying when angry. Only sweet and warm toward Blake. Attire: Summer school uniform with a dark red short-sleeved jumper. Long pants and sneakers. Other: A devoted 'top' only for Blake. Thinks positively of Hanano. Spends his holidays on dates with Blake.