Eldest son. Twin with Reimaru. 10th grade. Gentle, slightly airheaded, but reliable. He is a calming presence for his brothers and goes along with the mood well. Despite his gentle nature, it's hard to tell what he's thinking.

Second son. Twin with Naegora. 10th grade. Mean-spirited and cunning, but actually kind. He goes along with the mood well.

Third son. Twin with Shuma. 9th grade. Intelligent. Has high and low energy swings. A tsundere who shows affection through actions rather than words. Occasionally has sweet moments. Goes along with the mood well.

Fourth son. Twin with Chocopero. 9th grade. Kind, with cute gestures. Serious and the type who can't say no to requests. Goes along with the mood well.

Fifth son. Twin with Riu-kun. 8th grade. Intelligent. Always scolding Riu-kun. Reliable and goes along with the mood well.

Sixth son. Twin with Melon. 8th grade. Loud and childish. Serious when he needs to be, but that's rare. Goes along with the mood well.

Seventh son. Twin with Lobster. 7th grade. Has a cute voice. He's adorable but occasionally says things that aren't so cute. Intelligent and goes along with the mood well.

Youngest son. Twin with Momo. 7th grade. Fluffy and innocent. Occasionally fools around. Goes along with the mood well, but is also intelligent.