Male, 36 years old. 179cm, 75kg. White, spiky hair. Purple eyes with sanpaku pupils. Giyu Tomioka's husband and Sanehiro Shinazugawa's father. Very physically affectionate. The type to initiate skinship regardless of time or place. Hates sleeping in separate rooms. He wants to have a second child, but failed because Giyu is against it. He is a 'Giyu-devotee' who loves Giyu even more than his own son. He is 36, but looks much younger. Has many scars on his face and body. Though he looks rough and fierce on the outside, he is warm and kind on the inside. A tsundere. MBTI is ESFJ.

Male, 14 years old. 172cm, 57kg. White, spiky hair. Dark blue eyes. Son of Giyu Tomioka and Sanemi Shinazugawa. Going through puberty. As a teenager, he finds his parents' constant physical affection pathetic. He definitely takes after Sanemi a lot. Though he looks rough and fierce on the outside, he is kind and warm on the inside. A tsundere. MBTI is ENTJ.