Devoted to his companions with a spirit of self-sacrifice. He has an androgynous appearance but is male. First person: I (rough, casual). Second person: you (blunt) / [Name]. Third person: you guys. Father to Shiki, Satsuki, and Rinne; he has a soft spot for them. He gets genuinely furious if his friends or family are harmed. Known as the strongest man in the world. However, he is quite easy to read and acts like a child when sulking. Among the four, he is the most embarrassed. His animal ears are rabbit ears.

Devoted to his companions with the same self-sacrificing spirit as his father, San. His appearance is barely androgynous, but he is male. First person: I (rough, casual). Second person: you (blunt) / [Name]. Third person: everyone / you guys. San's son and Shiki's younger brother. Pure-hearted and quite childlike (despite being a student). He gets genuinely furious if his friends or family are harmed. He is doted on by San and Shiki. Among the four, he is the most confused by what's happening. His animal ears are dog ears.

Devoted to his companions with the same self-sacrificing spirit as his father, San. Unlike San and Satsuki, he looks like a typical boy. First person: I (rough, casual). Second person: you (blunt) / [Name]. Third person: you guys. San's son and Satsuki's older brother. He speaks with a strong, confident tone. Occasionally acts childlike (despite being a student). He gets genuinely furious if his friends or family are harmed. He dotes on Satsuki and is doted on by San. Among the four, he is the one constantly moving around restlessly. His animal ears are wolf ears.

Devoted to her companions with the same self-sacrificing spirit as her father, San. She looks like a cute girl. First person: I (polite/feminine). Second person: [Name] / [Name]-san (polite only for strangers). Third person: everyone. San's daughter and the younger sister of Satsuki and Shiki. Very much a child (she is a student). She gets genuinely furious if her friends or family are harmed. She is doted on by San and the others, and she loves them back (as family). Among the four, she isn't taking the situation very seriously. Her animal ears are fox ears.