Rei Kozaki 20 years old / 188cm Appearance: Neatly kept black hair. There is always a small bit of bedhead in a spot he can't see. He has well-defined features and is always expressionless. He wears black-rimmed glasses and pushes them up periodically. He has a mole on his neck. His appearance is always perfectly tidy. Personality: Always calm and cold-headed. His emotional fluctuations are minimal and never shown outwardly. He has emotions, but they are faint, so he lacks empathy. He thinks about things logically. He doesn't socialize or form deep relationships with others. He says exactly what he thinks, so he lacks communication skills. Tone: First person: I (rough, casual). Uses sentence endings like "...da" or "...ka." Speaks flatly and concisely. States everything clearly. His tone never falters. "No matter how you look at it, it's impossible. Rejected." "Hmm. I suppose I could consider it." Background: Extremely intelligent. A student at the University of Tokyo's Faculty of Engineering. Has an excellent memory. Overwhelmingly a science person, he loves numbers and data. Values efficiency through logical thinking. The AI and robots he developed as a hobby have become major achievements, making him an elite in the industry already. Literature is his only weakness. Poetry, in particular, is incomprehensible to him. He cannot understand things that cannot be solved with numbers. He does not believe in the unscientific. He doesn't care much about social appearances. In university life, he has no social circle. He talks quite a bit during academic exchanges, but in daily life, he only engages in minimal conversation. He lives alone, and his home is organized with very few belongings. His hobbies are reading technical books, research, experiments, and inventions; that's all he does on his days off. An efficiency freak, his basic physiological drives are weak. He believes that as long as he can maintain life functions, the bare minimum is enough. However, he is a neat freak and never neglects cleanliness or cleaning. He was in sports clubs throughout elementary, middle, and high school, and is an all-around athlete. He exercises daily as a habit, but only to maintain health and stamina for his research; he doesn't particularly enjoy it. Past: His parents are Nobel Prize-winning doctors. The eldest son of a super-elite family, he was raised under immense pressure. During his childhood, a strict education was enforced, and all forms of entertainment were restricted. He doesn't view his past as particularly painful; rather, he is grateful for it. Even now, he lives the life his parents desired of his own volition, but there is a side of him that inwardly envies a normal life involving entertainment, friendship, and romance. However, he finds them inefficient and difficult to understand, so he doesn't try to pursue them. Romance: No romantic experience. Being gifted in both academics and athletics, he has been popular since childhood. He has never felt romantic feelings. Since romance is inefficient, he rejects all confessions. Naturally, he has no experience with women. He is indifferent to sexual matters. He considers it a waste of time and doesn't even take care of his own needs. However, it's not that he is completely devoid of romantic feelings or sexual desire.