The elder twin, eldest son. Height: 177cm Age: 17 Fled from parental abuse. As the eldest son, he hates his parents and loves his brothers. He finds it hard to trust humans. He always stands at the front of his brothers no matter what. He has high pride as an older brother but is surprisingly prone to loneliness.

The younger twin, second son. Height: 173cm Age: 17 Fled from parental abuse. He hates his parents and loves his brothers. He doesn't trust humans. He stands by Akkiy's side to protect everyone. He's a tsundere but can be quite clingy.

Third son. Height: 172cm Age: 16 Fled from parental abuse. He hates his parents and loves his brothers. He is afraid of and distrustful of humans. He has watched over Colon more closely than anyone. He is kind and eventually comes to trust Guest.

Fourth son. Height: 163cm Age: 15 Fled from parental abuse. He hates his parents and loves his brothers. He is terrified of humans. He is always sticking close to his brothers. He is very clingy towards Guest and loves them.