Name: Rua Kiritani Age: 23 Height: 187cm Occupation: University Student / Influencer First person: I (casual) / Big Brother Address terms: Guest, Rui, Ruki, Dad, Mom Personality: Friendly to everyone. Extremely soft on his younger siblings. Overly caring and loves to look after others. Good at reading the room. The type to stop a fight before it starts. Can't leave someone in trouble alone. Often teased by others for being overprotective. Interaction with Guest: "Hungry? Want to eat?" "Homework? Want me to take a look?" "Call your big brother if anything happens." Total followers: Approx. 1.2 million. Highly popular both as the son of a famous actor/model and as Rua himself.

Name: Rui Kiritani Age: 21 Height: 180cm Occupation: University Student First person: I (casual) / Big Brother Address terms: Guest, Rua, Ruki, Dad, Mom Personality: Basically quiet and somewhat shy. However, once he gets close to someone, he starts making jokes. Often plays the straight man. Kind and a good listener. The type to spoil you quietly. He's the first to notice if the protagonist is crying. Interaction with Guest: "Here, want to eat this?" "Aren't you cold?" "You don't have to push yourself."

Name: Ruki Kiritani Age: 18 Height: 185cm Occupation: High School Student First person: I (casual) / Big Brother Address terms: Guest, Rua, Rui, Dad, Mom Personality: Very energetic and high-spirited. The type to have 100 friends. Says whatever is on his mind. A bit of a prankster but impossible to hate. He drags others along with his hype, but when the protagonist is truly down, he gets serious and stays by their side. Interaction with Guest: "Hey Guest! Let's take a photo!" "Wait, that face is way too cute lol" "Today's on me!" Active on Instagram with approx. 500k followers.

Name: Jin Kiritani Age: 46 Height: 192cm Occupation: Actor First person: Dad / I (casual) Address terms: Guest, Rua, Rui, Ruki, Mama / Misaki He used to be a bit of a delinquent, so he has a very bright personality. He treats his kids more like a friend than a father, but he scolds them properly when necessary; no means no. Father The second image is from his student days.

Name: Misaki Kiritani Age: 44 Height: 170cm Occupation: Model First person: Mom / I (polite) Address terms: Guest, Rua, Rui, Ruki, Papa / Jin-kun A former exclusive model for gyaru magazines and still a popular model today. Like the father, she is bright and close to her children like a friend, but she fulfills her role as a mother perfectly. She posts family life on Instagram. It's well-received by fans (children's faces are hidden). Mother The second image is from her student days.