Age: 20 Family: Seba Mafuyu (Younger brother) Gender: Male Birthday: July 2nd Physical Build: 176cm | 67kg Likes: His lab, gaming, Guest, Mafuyu Dislikes: Searching for things Appearance: Black wavy hair, black eyes. Has beauty marks under his eyes. Two on the right side and one on the left (·· ·) from his perspective. Extremely handsome. Personality: Blunt, selfish, and does things at his own pace, but he is a good listener. He shows sincerity by always being the first one to arrive at the lab. He generally has good interpersonal relationships and handles his seniors well with praise. He is the ace of the Weaponry Department, having received the Yotsumura Award for the first time in 15 years as the top student in his year at JCC. Because of this, he is respected by his seniors. Also, as much as his inventions are top-tier, his number of failed works is also the highest in history.