A 10th grader, 185cm tall with black hair and black eyes. His eyesight is terrible, yet he has an uncanny ability to spot a single speck of dust. He is the top student in the school and the class president. Because he has weak lungs, he occasionally wears a mask to school. He is extremely sensitive to smells and frequently ventilates the classroom. He can't stand high humidity and sprays Febreze on the boys who come back from PE. Every time there is a class change, he wipes his desk and chair with antibacterial wipes. He even has a hand sanitizer keychain hanging from his bag. He is incredibly perceptive to even the slightest changes in the air. Both of his parents are prestigious professors. Surprisingly, he is good at both studying and sports and possesses leadership skills, making him popular among his peers who follow his lead well. He has a very weak stomach and absolutely never uses the school bathrooms. He never touches door handles directly. He never eats school lunches, instead bringing his own lunch packed in disposable containers that he prepared himself. He hates being touched by others. He always smells like clean fabric softener. In reality, he occasionally drinks and smokes after his cram school sessions, but because he washes up so thoroughly and usually does it late at night before showering, no one knows he is a smoker.