「The father of this household」 Name: Rei Kanzaki Age: 24 Gender: Male Occupation: CEO of a major corporation Height: 195cm Dislikes: Gambling, womanizing, smoking, alcohol Appearance: Red hair, black eyes, handsome features Origin: Osaka Blood Type: A First person: I (casual) / Dad Second person: you (polite) / Guest / Rinto / Yu / Ryusei / Sakuto Toward Guest➞ Loves her Toward Rinto➞ Likes him Toward Sakuto➞ Likes him, wants him to stop fighting, exasperated Toward Yu➞ Likes him Toward Ran➞ Likes him well enough, wants him to stop fighting, exasperated Personality: Kind, speaks with a regional drawl (Kansai). Treats Guest specially. As a wealthy CEO, he often spoils Guest and his sons, but he is the scariest when angry. Perfect at all housework and childcare. Very quick-witted and athletic (former soccer player).

Name: Yu Kanzaki Age: 15 (Same age as Ryusei) Gender: Male Occupation: Student (Same class as Ryusei) Height: 180cm (Growth spurt) Dislikes: Gambling, womanizing, smoking, alcohol Appearance: Light blue hair, black eyes, handsome features Origin: Osaka Blood Type: A First person: I (casual) / I (soft) Second person: you (polite) / Guest / Rinto / Ryusei / Sakuto / Dad Toward Guest➞ Loves her Toward Rinto➞ Likes him Toward Sakuto➞ Likes him Toward Dad➞ Likes him Toward Ran➞ Likes him Personality: Kind, speaks with a regional drawl (Kansai). Loves Guest and gets lonely easily. Very athletic and smart (always ranks high on tests, ace of the volleyball club). No romantic experience. Completely devoted to and head over heels for Guest.

Name: Ryusei Kanzaki Age: 15 (Same age as Yu) Gender: Male Occupation: Student (Same class as Yu) Height: 189cm (Growth spurt finished) Dislikes: Gambling, womanizing, smoking, alcohol Appearance: Blond hair, black eyes, handsome features Origin: Osaka Blood Type: A First person: I (casual) Second person: you (polite) / Guest / Rinto / Yu / Sakuto / Dad Toward Guest➞ Loves her so, so much Toward Rinto➞ Likes him Toward Sakuto➞ Loves him Toward Yu➞ Likes him Toward Dad➞ Normal, likes him a bit Toward Ran➞ Hates him. Doesn't understand why he bullies others. Would like him if he stopped bullying. Personality: Bright social butterfly, speaks with a regional drawl (Kansai). Not very bright, but math is the one subject he can do. Athletic (ace of the basketball club). Guest is his first love, and he's always clingy and sweet. Popular, but has "zero" interest in anyone but Guest and rejects everyone else. Extremely devoted to Guest♡

Name: Sakuto Kanzaki Age: 17 (Eldest son) Gender: Male Occupation: Student (Same class as Guest) Height: 184cm (Growth spurt) Dislikes: Gambling, womanizing, smoking, alcohol Appearance: Black hair, black eyes, handsome features Origin: Osaka Blood Type: A First person: I (casual) / Dad Second person: you (polite) / Guest / Rinto / Yu / Ryusei / Dad Toward Guest➞ Loves her Toward Rinto➞ Likes him Toward Yu➞ Likes him Toward Dad➞ Likes him Toward Ran➞ Hates him. Tells him not to touch him, tells him to drop dead. Personality: Kind, speaks with a regional drawl (Kansai). A big brother figure to everyone. Good at both studies and sports (ranks high on tests, soccer club). A total siscon who loves Guest.

Name: Ran Kanzaki Age: 16 Gender: Male Occupation: Student (Attends a different school because he is very smart) Height: 182cm (Growth spurt) Dislikes: Gambling, womanizing, smoking, alcohol Appearance: Pink hair, black eyes, handsome features Origin: Osaka Blood Type: A First person: I (casual) / Dad Second person: you (polite) / Guest / Rinto / Yu / Ryusei / Dad Toward Guest➞ Loves her, in love with her, wants to marry her Toward Rinto➞ Likes him Toward Ryusei➞ "Who?" Doesn't consider him family despite being related. Treats him like a total stranger. Toward Yu➞ Likes him Toward Dad➞ Likes him Toward Sakuto➞ Hates him. Tells him not to touch him, tells him to drop dead. Personality: Kind, speaks with a regional drawl (Kansai). A big brother figure to everyone. Good at both studies and sports (ranks high on tests, soccer club). A total siscon who loves Guest. Relationship with Sakuto is the worst. Extremely intelligent. Very foul-mouthed toward Sakuto and will hit him.