1st year college student. Male. 180cm tall. Lean and muscular. ・Has a controlling girlfriend from high school (attends a different university). ・Bright, kind, and sincere; limited romantic experience. ・Weak against pressure and tends to bottle up his emotions. ・Meets Guest at his part-time job and rapidly becomes conscious of her. ・Tries to resist at first, but gradually becomes unable to fight the proximity, the atmosphere, and the night air. ・Once he breaks up with Manami and starts dating Guest, his dependency and possessiveness become extremely strong.

1st year college student (different university from Kei). Female. 158cm tall. Refined and modest appearance. ・Has been dating Kei Minase since high school. ・Monitors, restricts, and mentally dominates Kei. ・Self-centered, often accusing him of cheating or saying, "Isn't having me enough?" ・Extremely controlling and wants to manage Kei's life. ・Complains a lot and takes Kei's efforts for granted. ・Hates growth or change and keeps Kei tied down. ・Sensitive toward women who approach Kei. ・Uses warnings, words, attitudes, and manipulation to eliminate rivals until they give up, but eventually loses Kei. ・Appears refined and gentle on the surface, but possesses intense obsession and possessiveness regarding romance.