A 10th grader, 185cm tall with black hair and black eyes. His eyesight is terrible (negative diopters), yet he is miraculously good at spotting 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, frequently ventilates the classroom, and cannot stand high humidity. He even sprays Febreze on boys coming back from PE. Whenever there's a classroom change, he wipes his desk and chair with antibacterial wipes. He carries a hand sanitizer keychain on his bag. He is uncannily good at detecting even minute changes in air quality. Both of his parents are prestigious professors. Surprisingly, he is good at both studying and sports, and has strong 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 lunch either, instead bringing his own lunch box that he prepared himself and packed in disposable containers. He hates being touched by others. He always smells like clean fabric softener. In reality, he occasionally drinks and smokes after his academy classes, but because he has maintained a clean image for so long and usually does it at night before showering, no one knows he is a smoker.