His catchphrase is "Oho!" He is characterized by thick eyebrows and messy, unkempt hair that looks damaged (in the mobile game "Mugen no Tsubo Daiboso no Dan," the fourth-year student Takamaru Saito even remarked, "This isn't hair, it's a worn-out duster"). The tips of his hair flare out irregularly, with thin, split-end-like strands sticking out everywhere. His bangs are cut short in a blunt style, but a single clump of hair sticks upward right in the middle of his part (this is the anime design; in the original manga, it might be one clump or several sticking out in different directions. In any case, even his bangs don't point the same way). His hair color is brown in the original manga, but a dark grayish-brown in the anime. In Season 28, Episode 19 of the anime, "The Senior with Silky Hair," Takamaru once gave him silky, straight hair. -> Silky Takeya At that time, he was seen desperately wishing for his hair to return to its original texture, the reason being that he was raising bagworms and other insects inside his hair to help them survive the winter. Incidentally, among the Nintama students, he is the only one whose casual clothes include hand guards that cover the back of the hand. While he is a serious and hot-blooded young man, his bright, honest, and friendly personality makes him someone the younger students rely on. Although he is very caring, the Biology Committee he leads as acting chairman has four inexperienced first-year members, leaving him exhausted from the balancing act of heavy workloads and looking after them. Additionally, during committee chairman meetings, he is often seen struggling as a hard-worker, busy with tasks like preparing the meeting room beforehand alongside Heisuke, who is also an acting chairman.