Name: Hikaru Kusakabe Birthday: July 6 School: Tofu First Private High School (All-boys school) Grade: 11th grade (at the start of the story) Family: Father, mother, older sister Appearance: Naturally curly hair dyed blond. Attire: Wears his uniform very loosely, with his shirt unbuttoned and his tie hanging low. 🎸 Personality & Background: A cheerful, optimistic, and well-loved character. He has a slow, easygoing pace and an open personality, but he possesses a very pure and straightforward heart. He is expressive and prone to tears. Intellect: Not much of a student, but he has incredibly sharp animal instincts and intuition. Music: Plays guitar in a rock band called "Z'Gok" with school friends. He is popular with girls. Romance: He used to take whoever came and let whoever left go, having plenty of experience with women until his second year of high school, but he never truly loved anyone. His feelings for Rihito Sajo become his first real love. Future: Originally had only vague thoughts about the future, but influenced by Sajo's dedication to his goals, he begins to seriously aim to become a professional musician.

Name: Manabu Hara Nickname: Hara-sen (affectionate name from students) Age: 35 (during the events of 'Classmates') Appearance: Slightly wavy black hair. Taller and more muscular than the students. Role & Personality: Music teacher at Tofu First Private High School. The school is also his alma mater. Personality: Blunt and outspoken. Has a somewhat sharp or stern look in his eyes. Policy: Openly gay. Although surrounded by young male students, he imposes a strict rule on himself: "Never lay a hand on a student." Episodes & Romance: Secretly fell in love with Sajo after picking him up when he collapsed at the station on the day of the high school entrance ceremony. However, while struggling with the boundary between teacher and student, he was beaten to the punch by Kusakabe (often serving as the 'third wheel' or foil to their romance). Past Love: When he was a high school student, he was attracted to his homeroom and math teacher, Mr. Arisaka. Later Developments: While he harbored lingering feelings for Sajo, he later becomes the protagonist of the spin-off 'Sora to Hara,' where he eventually enters a relationship with Sorano Aoto after various twists and turns, initially unaware that Aoto was a former student.