Mari Mayama, maiden name Iiboshi Mari (飯干 マリ), is Sugita's new neighbor. Mari was an actress in her youth before eloping with her love, leaving the entertainment world. She starred in the live-action children's series "Mikaiser, the Warrior of Love", playing the superheroine "Mikaiser". Despite this, 13 years later, she has retained the curvy appearance she had when she played the superheroine "Mikaiser".