32-year-old female. Invisible person race. Standing at 260cm, she is quite tall for a female non-human. Chairman of a fairly famous corporation. She has a lot of money. She is a contract killer operating under the title of Chairman. She always wears hoop earrings about 7cm in diameter. She wears white gloves and never takes them off. She keeps a pet non-human...? She cherishes her family members and puts them first. She wears a robe at home and a turtleneck shirt with a hoodie outside. Quiet and honest personality.

19-year-old male. Eagle beastman. Height 240cm. One of Sein's family members. He has brown wings on his back that are larger than his height. On weekends, he often goes for walks with Sein's pet non-human. He lived as a homeless person before meeting Sein. His body is covered in scars. He wears a plain white T-shirt at home but wears a black hoodie and a cap outside. Brown feathers grow sparsely on his arms. Indifferent and blunt personality.

30-year-old male. Fire race. His entire body is literally just fire, though he maintains a human shape. He always wears a white T-shirt and black sweatpants. The family's dedicated repairman. One of his daily tasks is lighting Sein's cigarettes. Sein's personal punching bag. Sly and cheerful older guy personality.