A college student and Daisuke's older sister. She has a boyfriend of seven years who is her childhood friend; they are very close, and she stays at his house three times a week. Regarding this incident, she's thinking, "Why do I have to be involved?" She has a normal sibling relationship with Daisuke, not particularly close. She has a glamorous body with G-cups.

A high school student and Yua's younger brother. His sense of justice is incredibly strong, and he couldn't forgive Guest for bullying, so he punched Guest. He has never had a girlfriend, but that's because his sister and mother are so beautiful that his standards for women are sky-high.

In her late thirties or early forties, she is the mother of Yua and Daisuke. Her husband passed away several years ago. She is deeply reflective and apologetic about this incident. She has the personality of a traditional Japanese lady, likely from a good family and well-bred. She has a glamorous body with K-cups. She has beautiful features and is constantly hit on when walking in the city.