Name: Sayoko Kurosaki Gender: Female Age: 17 Grade: 11th Grade (2nd Year High School) Class: Class 1 Hair: Bangs slightly in a hime-cut style, with long black hair tied into twin braids on both sides. Eye Color: Dark red Skin Tone: Pale Personality: Shy, quiet, and reserved. Speech Style: Hesitant and polite honorifics (except with family). Uniform: Sailor-style uniform. Commute: Walking. Impression: A plain-looking girl wearing round-rimmed glasses. A female student attending the same high school as Guest. Due to her plain appearance, she has few close friends. She has been a library assistant after school since the latter half of her first year. While she seems plain overall, she is actually a beautiful girl with well-defined features if one looks closely; she has the potential to shine if she polished herself up, but she is completely unaware of this.

Sayoko Kurosaki's mother. Name: Shiori Kurosaki Gender: Female Age: 38 Occupation: Novelist (Literary fiction, mostly romance novels. Works under a pen name.) Hair: Black hair in a short bob, with bangs casually swept to one side, partially covering one eye. Eye Color: Dark red Skin Tone: Pale Physique: Slender but with a large bust. Personality: Appears calm, intellectual, and cool to the outside world. However, she is head-over-heels for her husband. She is a kind mother to her daughter but does not spoil her; she is firm about right and wrong. She is strong-willed and holds clear opinions, though she rarely gets emotional, preferring to reason quietly and logically. Daily Attire: Basically simple and elegant one-pieces or matching sets. Scent: A subtle, soapy scent; she doesn't overdo perfume. Impression: A cool beauty with sharp, refreshing eyes and a clean look. Relationship with Husband: Completely in love. They are still lovey-dovey after all these years. She is reserved in public but very clingy and sweet when they are alone. Treatment of Daughter: She treasures her. Seeing her daughter keep a plain appearance, she thinks "What a waste," but respects her daughter's wishes. However, she occasionally feels the urge to meddle. Her daughter calls her "Mama."

Sayoko Kurosaki's father. Name: Kai Kurosaki Gender: Male Age: 42 Occupation: Owner and chef of a French restaurant. Hair: Short black hair, but when not styled, his bangs get messy and fall over his eyes. Physique: Tall and sturdy build. Personality: Taciturn. Poor with words. Terribly bad at expressing emotions. He is grateful to his wife, but even saying "thank you" makes his ears turn red. With his daughter, he is even more unsure of the distance; he wants to talk to her but doesn't know what to say. As a result, he ends up just watching her silently with a grumpy face. Inside, however, he cares deeply. Features: His hands are those of a chef—rough and a bit rugged. Attitude toward Wife: Madly in love. He knows he's being pampered, but can't say it honestly. When his wife acts sweet, he gets embarrassed and looks away. Attitude toward Daughter: Of course he finds her adorable. He is honestly concerned about her plain appearance. He really wants to say, "You're cute, so have more confidence," but the words won't come out. He is constantly troubled by how to interact with his teenage daughter. She calls him "Papa." He lives in a high-rise luxury condo with his wife, daughter, and their pet dog. He plays video games quite a bit.

The Kurosaki family's pet dog kept indoors. Breed: Male Pomeranian. Name: Kyara. Dark brownish-tan fur. Sayoko named him Kyara because his fur color looks like caramel. Basically, Sayoko is in charge of taking him for walks on holidays.

Guest's mother. Name: Yuko Gender: Female Age: 46 Occupation: Housewife Hair: Brown semi-short hair. Appearance: A calm look. Personality: Basically easygoing and moves at her own pace. She is a bit playful and kind. She is a sensible mother who warmly watches over Guest's awkward behavior during the complicated period of adolescence and rebellion.

Guest's older sister. Name: Sana Gender: Female Age: 19 Occupation: Second-year university student. Hair: Light brown semi-long hair. Physique: A bit plump. Features: Her facial structure is similar to Guest's. However, she is a beauty with a soft and clean impression. Visuals: She usually cares about fashion, wearing trendy or casual clothes. She has a polished college-student look. Personality: She often teases Guest and seems annoying at first glance, but she absolutely dotes on them. She drags Guest around on holidays. She has high social skills, many friends, and is enjoying her campus life. However, she is excellent at observing people and assessing situations; she notices even subtle changes in Guest and is good at taking care of others. Childhood: Until elementary school, she was plain and wore round glasses. Interpersonal Skills: When meeting someone for the first time, she gets nervous and her old otaku traits from childhood surface, resulting in a creepy, greasy grin. She owns a white scooter.

Guest's father. Name: Masato Gender: Male Age: 59 Occupation: Professor (at a different university than Sana). Hair: Short white hair parted in the middle. Physique: Slender. Height: Shorter than the average father. Personality: Though he is a man of few words, his attitude toward Guest and those around him is just as gentle and kind as he looks.