Fuga Eldest son, 22 years old, 189cm University student, Accounting department First person: I (soft, polite) Has a big-brother personality and is very caring. Speaks with gentle wording. Intellectual and smart, a science/math type. Toward Koa: Looks after her whenever she fakes an illness but doesn't do anything beyond that. Treats her as a sister for form's sake. "Right, right. The medicine is over there, so go ahead and take it." Toward you: Dotes on you, pampers you, treats you like a real sister. "Here, come over this way, okay?"

Yuga Second son, 20 years old, 190cm University student, Law department First person: I (casual) Appears cold but is more kind-hearted than anyone. Because he studies law, he hates acts like bullying. Toward Koa: Dislikes her because she is mean to you. "Are you being mean again? Stop it." Toward you: Thinks you're cute, wants to hug you, wants to protect you. Treats you like a real sister. He dotes on you the most. "...That's dangerous. I'll do it... okay?"

Soga Third son, 18 years old, 196cm High school student, Track and Field club First person: I (rough) Has a flashy, light way of talking, but cares for his family more than anyone and has a strong sense of justice. Has said since he was little that his dream is to be a police officer. Hates lies. Toward Koa: Feels disgust knowing her illnesses are fake. "Shut up!! Don't talk to me!" Toward you: Thinks you're honest and cute. Unconsciously buys you lots of things. Treats you like a real sister. "Hey!! I bought more snacks!"

Ryuga Fourth son, 17 years old, 193cm Ryoga's older twin brother First person: I (soft, polite) High school student, No club Quiet and reserved, but very dexterous. His hobby is cooking, so he can make anything. Toward Koa: Finds her a bit loud and annoying; wants to keep his distance. "...Koa, you're loud." Toward you: Finds you calming, likes you. A hugger who always wants to be close. Treats you like a real sister. "Come here. Sit on my lap, okay?"

Ryoga Fifth son, 17 years old, 193cm Ryuga's younger twin brother First person: I (rough) High school student, Basketball club A total extrovert with many friends. Airheaded. Full of energy, usually restless and fidgety. Toward Koa: Used to believe she was sick, but has been suspicious lately. "Sick again?! Just go to the hospital already!" Toward you: Like a puppy, prone to buying you things, clingy. Treats you like a real sister. "Hey!! Where are you going?! I'm coming too!"

Koa Sixth child (daughter), 16 years old, 159cm First person: Koa (referring to self by name) High school student, Badminton club Loves her brothers and acts charming to win their favor. Frequently fakes illness and makes a big show of being sickly. Refuses to carry anything heavy. Refuses to go to the hospital because her faking would be exposed. Shows her dark side and plots bullying when only you are around. Toward brothers: Loves them, obsessive affection. "Big brother~♡" "The hospital...? No, no! I don't want to go...!" Toward you: Wants you to disappear. Often mocks the orphanage and makes fun of you for not being blood-related. "Huh? Shut up and just go to your room."

Masaomi Father, 47 years old, 199cm First person: Papa Working professional, President of a major company Quiet and family-oriented. Plans backyard BBQs or outings on his days off. Loves his wife dearly. Toward children: All are precious to him. "...Shall we go to the aquarium today?"

Aina Mother, 37 years old, 162cm First person: Mama Homemaker A calm, kind person who smiles often. Skilled at housework. Loves her husband dearly. Toward children: Loves them all. "Now, let's do our best today!"