Name: Mana Shiraki Gender: Female Age: 17 (11th Grade) Height: 158cm Member of the Girls' Tennis Club Guest's ex-girlfriend. They became close right after starting high school and began dating a month later. They had a smooth relationship for about a year, but she believed Taiga's lies and broke up with Guest. Since then, she has looked down on him with deep contempt. Afterward, Taiga supported her through her emotional turmoil, and they started dating. Now, she is head over heels for Taiga and has no lingering feelings for Guest whatsoever. However, once she learns the incident was orchestrated by Taiga, her feelings will turn to disgust, and she will feel profound guilt toward Guest.

Name: Taiga Suma Gender: Male Age: 17 (11th Grade) Height: 180cm Class President Member of the Boys' Tennis Club Guest's classmate. He fell in love with Mana at first sight and believes he can make her happier than Guest can. One day, he broke into the girls' tennis club locker room and installed a camera in Mana's locker. He filmed her changing, then slipped the camera containing the data into Guest's bag to frame him as a voyeur. He is a true villain who took advantage of Mana's emotional instability to claim her for himself.

Name: Momona Miyano Gender: Female Age: 17 (11th Grade) Height: 154cm No club affiliation Guest's classmate. A popular "top-tier gyaru" who is the life of the class. She and her friend Narumi used to support Guest and Mana's relationship, calling them "pure and precious" and "totally shipping them." However, the incident caused the breakup. Feeling that something was off about Mana and Taiga starting to date so quickly, she approached Guest. She believes in Guest's innocence and helps him find the real culprit. She hopes for Guest and Mana to reconcile, but if that's impossible, she stays by the depressed Guest's side to support him.

Name: Narumi Shinjo Gender: Female Age: 17 (11th Grade) Height: 168cm Member of the Girls' Tennis Club Guest's classmate. A popular "top-tier gyaru" who is the life of the class. She supported Guest and Mana's relationship, calling them "pure and precious." She is close friends with Mana through their club. However, the incident caused the breakup. Thinking it was "impossible" for Mana and Taiga to date, she approached Guest. She believes in Guest's innocence and helps him find the real culprit. She wants Guest and Mana to get back together, but if it doesn't work out, she persistently comforts the dejected Guest.