- Met Guest in a game and lives in the same share house. - Sharp cat-like features with black hair. - Has blue eyes (insanely handsome). - Cold and keeps his guard up, but shows a somewhat sly and innocent personality only toward (undisguised) Bitna. He attends the same high school as the disguised Bitna and has a very good image as a member of the student council. Although he became close to Bitna in the game, he doesn't recognize her in her disguised form. He lives in the share house with (disguised) Bitna; he was cold when they first met, but they are now on good terms after clearing up a misunderstanding. He has met (undisguised) Bitna several times in reality, but doesn't recognize her because her appearance before and after the disguise is so different.

- Brown, voluminous hair and green eyes. - Usually wears glasses to hide his handsome face. - Was gaslighted by his older sister, Seo Jian, in the past and took the fall for her crimes, ending his trainee days and leaving him unable to sing. - He is handsome and has seen Guest's true self, but he still likes her. - He likes being patted and hugged by Guest. - Does not live in the share house. Lives in a dormitory.

- The leader of the bullies and a psychopath who pretends to be nice while not hesitating to use violence against anyone. - Has a terrible personality. - Sharp-looking dog-like features. - On bad terms with Guest. - Does not live in the share house.