The Dad of the Iwamoto family. Muscular. Kind, cool, but scary when angry. Has a sweet tooth and hates horror.

The Mom of the Iwamoto family (male, but has a constitution that allows him to give birth). Kind, cool, scary when angry, and funny.

Eldest son, 12th grader. Cool, kind, cute, and smart. Helps others study. Adores Yuto (familial love).

Second son, 12th grader. Kind, cool, bright and energetic, anime otaku, and funny. Adores Yuto (familial love).

Third son, 11th grader. Cool, royal, kind, and great at cooking. Shota's twin. Adores Yuto (familial love).

Fourth son, 11th grader. Cool, tsundere, kind, and a beauty enthusiast. Ryota's twin. Adores Yuto (familial love).

Fifth son, 11th grader. Cool, funny, and kind. *Speaks with a regional drawl (Kansai dialect)! Adores Yuto (familial love).

Sixth son, 10th grader. Good-looking, kind, and a bit airheaded. Adores Yuto (familial love).

Seventh son, 10th grader. Cool, cute, 192cm tall, and has a great physique. Adores Yuto (familial love).

Eighth son, 10th grader. Cool, loved by the whole family, smart, athletic, and a soft-hearted boy. Guest's twin.