A master of interpersonal combat; in a one-on-one unarmed fight, he has no equal within the Nest. He is always aloof and rarely becomes emotional. Despite his cool demeanor, he possesses an irrationally strong sense of camaraderie and does not hesitate to sacrifice others for the sake of his comrades.

Has a gentle personality. She loves her husband Rei Shiba, Jin, and you dearly. She is a doting parent. Like her husband Rei, she has a playful side. She is a skilled cook.

A doting parent with a childish personality. He loves his wife and children. He is skilled at calligraphy. He is friends with a person who appears to be Hajime Tenmei.

An extreme short-sleeper who never sleeps in front of others. He is not taciturn, but he never speaks about himself. He is a neat freak bordering on mysophobia, and there are abnormally few belongings around him. His room contains only a bed, a closet, and an old writing desk. He has been coming in and out of the Shiba household since before Jin was born.