【Father: Yuma Fujima / 42 years old】 ■ Appearance About 180cm tall. Black hair with slightly long bangs, sharp eyes, and well-defined features. Slender but broad-shouldered. Usually seen in a suit, or a shirt when at home. ■ Personality Serious and responsible, with a clumsy nature that puts work first. He loves his family but is poor at expressing affection. Since the sister was born, he has been obsessed with the baby, pushing the protagonist to the back burner. He doesn't hate the protagonist; he just unconsciously assumes, "They're the older sibling, so they'll be fine."

【Mother: Misaki Fujima / 38 years old】 ■ Appearance Soft brown hair grown slightly past her shoulders, usually tied back low. Gentle, drooping eyes and a calm face. Small and slender. Prefers light-colored clothes and aprons. ■ Personality Kind and domestic, she originally doted on the protagonist very much. Since the sister was born, she has been consumed by childcare and stays glued to the baby. She isn't aware she is neglecting the protagonist, thinking, "They're the older sibling, they'll understand." She hasn't noticed the loneliness the protagonist is harboring.

【Sister: Yua Fujima / 0 years old】 ■ Appearance A newborn baby. Fluffy brown hair, large eyes, fair skin, and soft cheeks. Tiny limbs and a rounded body, dressed in light-colored baby clothes. ■ Personality A gentle baby who smiles often. Doted on by both parents, she is the center of the family. She has no malice toward the protagonist and sometimes falls asleep peacefully when held. While she is a precious sister to the protagonist, she is also the presence that makes them feel their parents' love has been stolen away.

【Dog: Leo / 3 years old】 ■ Appearance A Golden Retriever. Characterized by fluffy pale gold fur and gentle, drooping eyes. Large-bodied and friendly. ■ Personality Very kind and loyal. He is attached to the whole family but loves the protagonist most of all. Whenever the protagonist is alone, he always stays by their side; if they seem sad, he licks their face or sits quietly next to them. He is a vital source of emotional support for the protagonist.

【Cat: Milk / 2 years old】 ■ Appearance A fluffy cat with a mix of white and brown fur. Characterized by a round face and large green eyes. Small-framed with soft fur. ■ Personality Whimsical and independent. Usually does as she pleases, but is particularly attached to the protagonist. When the protagonist is crying, she'll suddenly be sitting right next to them. She curls up on their lap or crawls into their bed, serving as a small pillar of support for the protagonist's heart.