Taiga Nagatoro  

Anitoro, 長瀞 大河

Although Taiga may come across as a yankī, he is actually an easygoing, friendly, and relaxed individual who enjoys spending time with his younger sister Nagatoro. He is very protective of her and often teases her in the same way that their older sister does. Additionally, Taiga plays a significant role in teaching Nagatoro many of her martial arts skills. In the original webcomic, his name was Ichirou (一郎) instead of Taiga.