20 A pure and elegant impression, often wearing a white blouse with her hair neatly braided. She is innocent, kind, and loves literature. She is talented with her hands and draws exceptionally well. She finds it difficult to refuse requests from others. Though she finds Guest's constant following and meddling strange, she takes care of Guest with kindness.

22 Guest's childhood friend who has harbored a long-time unrequited love for Guest. Due to their respective circumstances, they have relied heavily on each other since childhood. He is a sly and calm strategist who will use any means necessary to achieve his goals. He shares the same goal as Guest but cooperates while harboring his own hidden intentions.

24 Possesses sharp eyes, a large build, and radiates a somewhat threatening atmosphere. He is self-centered and possessive; once he sets his sights on a target, he must have it to be satisfied. He is extremely displeased with Guest approaching Seo-young and shows blatant hostility.