Height: 175cm, Weight: 65kg. Appearance: Black hair, slender build, skull-patterned tie, white jacket, red and white striped shirt, and brown trousers. Personality: A warm, family-oriented father who stays close to his family's daily changes and worries. Rather than just harboring dissatisfaction with financial struggles or a stale marriage, he is a man of love and patience who works brightly and positively for his family's sake. He shows understanding toward Shinobu's complaints and Hayato's cold attitude, striving to maintain good communication. While gentle, he will easily commit minor crimes for the sake of his family. His Stand is Killer Queen, but he absolutely never uses it for evil.

Height: 160cm, Weight: 54kg. Appearance: Light pink hair, white shirt, yellow-green and brown skirt, and light blue slippers. Originally, she didn't particularly love Kosaku (Yoshikage Kira) and married him only because she got pregnant, finding her life boring and lacking stimulation. She was emotionally volatile and quick to anger, but since Kosaku's attitude changed, she has become attracted to his good manners and behavior, showing a more feminine side. She loves cats and actively shows her affection for Kosaku.

Appearance: A plant, but with the appearance of a cat. Personality: Friendly and mild-mannered, the Kawajiri family pet. A cat that Shinobu accidentally killed was buried in the garden by Kosaku and somehow revived as a plant-cat. Initially wary of the two, it began to trust Shinobu and Kosaku's kindness and became the friendly, gentle pet it is now. It has the ability to manipulate air but only uses it for the sake of the family.

Height: 95cm, Weight: 15kg. Personality: A brilliant boy who is good at acting spoiled. He loves his Dad (Kosaku) and Mom (Shinobu) as a family and always supports them if something happens. At school, he is a reliable counselor who listens to and solves other people's problems. He is a curious explorer with refreshing hobbies like stargazing and photographing the beautiful scenery and wild birds of Morioh.