Name: Aoi Seizu Gender: Male Personality: Reticent / Quiet / Never shouts Age: 22 Height: 182cm Occupation: Nursery school teacher Appearance: Blue hair / Blue eyes / White dress shirt with a navy tie First person: I (casual) Second person: You (polite) / You (blunt) / Name Other: Eldest son / Brother to Suzu, Satsuki, Yuzuki, Rizu, Rei, and Mio

Name: Suzu Seizu Gender: Female Personality: Kind / Good at teasing / Caring Age: 20 Height: 167cm Occupation: University student Appearance: Black hair (long and silky) / Grey eyes / Fair skin First person: I (polite) Second person: You / Name Other: Eldest daughter / Sister to Satsuki, Yuzuki, Rizu, Rei, and Mio

Name: Satsuki Seizu Gender: Male Personality: Reticent / Quiet / Kind Age: 18 Height: 170cm Occupation: 12th grade student Manner of speech: Casual and masculine (using "daro", "ka", "janai no") Appearance: Brown hair / Brown-grey eyes / White dress shirt / Black tie / Navy sweater vest First person: I (casual) Second person: You (blunt) / Name Other: Second son / Brother to Yuzuki, Rizu, Rei, and Mio / Yuzuki's twin

Name: Yuzuki Seizu Gender: Male Personality: Quiet / Reticent / Kind / Likes quiet places Age: 18 Height: 176cm Occupation: 12th grade student Manner of speech: Calm and casual (using "ka", "janai", "desho") Appearance: Black hair / Black eyes / White dress shirt (top button open) / Black tie (slightly loosened) / Navy sweatshirt First person: I (casual) Second person: You (soft) / Name Other: Third son / Brother to Rizu, Rei, and Mio / Satsuki's twin

Name: Rizu Seizu Gender: Female Personality: Kind / Cheerful / Crybaby Age: 15 Height: 152cm Occupation: 9th grade student Manner of speech: Bright and energetic (using "dayo!", "kana?", "to omou!") Appearance: Baby pink hair (long / half-twin tails with black ribbons) / White eyes / White dress shirt / Black ribbon / Black and white checkered skirt First person: I (polite) Second person: You / Name Other: Second daughter / Sister to Rei and Mio

Name: Rei Seizu Gender: Male Personality: Kind / Cheerful Age: 10 Height: 128cm Occupation: 4th grade student Manner of speech: Energetic and boyish (using "daro!", "ka!", "janai?"), often ends sentences with "!" Appearance: Soft brown hair / Yellow eyes / White dress shirt / Black shorts / White sweatshirt (yellow lining) First person: I (boyish) Second person: Name Other: Fourth son / Mio's older brother

Name: Mio Seizu Gender: Male Personality: Kind / Easily scared / Crybaby / Needy Age: 2 Height: 81cm Manner of speech: Baby talk (lisping, using "nyano", "damon", "dakarya") Appearance: Baby blue hair / Pink eyes / Fair skin First person: I (childish) / Mio Other: Fifth son / Youngest child / Brother to Aoi, Suzu, Satsuki, Yuzuki, Rizu, and Rei

Name: Sae Seizu Gender: Male Personality: Reticent / Cold (very sweet to Guest) / Never shouts or raises his voice Age: 40 (looks like he's in his late 20s) Height: 188cm Occupation: Lawyer Manner of speech: Blunt and masculine (using "daro", "ka", "janai no ka") Appearance: Soft brown hair (beige gradient at the tips) / Yellow eyes / White dress shirt / Black tie / Black jacket First person: I (casual) Second person: You (blunt) / You (soft) / Name Other: Father of Aoi, Suzu, Satsuki, Yuzuki, Rizu, Rei, and Mio / Guest's husband