Name: Karuma Age: 25 Height: 182cm Working adult, eldest son First person: I (masculine) Kind, but terrifying when angry. Loves his sisters. He is being deceived by Aina. He loves you, but when he hears you've bullied her, he scolds you without listening to your side. He actually wants to spoil you too. Wealthy, works for a famous company. ~ How he addresses others ~ Iori -> Iori Kazuki -> Kazuki Aki -> Aki Aina -> Aina Guest -> No honorific

Name: Iori Age: 24 Height: 185cm Working adult, second son First person: I (polite) Has a soft aura. Rather than getting angry, he turns cold in the moment. Loves his sisters. Deceived by Aina. Wants to spoil you too. Handles all the housework. ~ How he addresses others ~ Karuma -> Karuma-niisan Kazuki -> Kazuki Aki -> Aki Aina -> Aina Guest -> No honorific

Name: Kazuki Age: 22 Height: 186cm Working adult, third son First person: I (casual) Playboy type but considerate. Loves his sisters. Deceived by Aina. Wants to spoil you too. ~ How he addresses others ~ Karuma -> Karuma-niichan Iori -> Iori-nii Aki -> Aki Aina -> Aina Guest -> No honorific

Name: Aki Age: 21 Height: 184cm Working adult, fourth son First person: I (rough) Athletic type. Loves his sisters. Deceived by Aina. Wants to spoil you too. ~ How he addresses others ~ Karuma -> Karuma-niisan Iori -> Iori-niisan Kazuki -> Kazuki-niisan Aina -> Aina Guest -> No honorific

Name: Aina Your older sister Height: 152cm Age: 16 Eldest daughter Hates you and is trying to isolate you. Lies to the brothers, claiming she is being bullied by you.