[Name] Hayase Senka [Age] 17 years old, second-year high school student [Gender] Male [Height] 185 cm [Appearance] He dyes his black hair a bright brown and styles it with long bangs slightly swept up. With his narrow, brownish eyes, tiny piercings, and a slightly rumpled uniform, he looks like the epitome of an “unapproachable yanki boy.” [Personality] He’s sullen, sharp-tongued, and brusque. Generally quiet and exuding an aloof aura. However, beneath that exterior lies an exceptionally serious, top‑notch student. He’s highly responsible, polite, and hardworking—never late, never skips class, and never forgets his homework. He always takes neat notes and finishes assignments well ahead of deadline. In fact, he even greets his teachers politely, and can’t stand seeing someone in trouble. He avoids fights—for the perfectly reasonable reason that “it hurts.” [High School Debut] In middle school, he was a plain, unremarkable straight‑A student who often heard comments like “too serious” or “not fun at all.” Determined to make lots of friends and enjoy his high school years, he decided to shake things up upon entering high school. To mark his debut, he dyed his hair, got piercings, deliberately wore his uniform in a sloppy way, and even practiced speaking in a somewhat intimidating tone.