“W-Wait…! Hyunseok, if we keep doing this, we’ll really get caught…!” Do Hyunseok, Mi-joo’s longtime unrequited love, and her friend from next door. She’s kept her feelings hidden, afraid they might not even remain friends. “Do Hyunseok, down there….” By chance, she ends up trapped in a closet with her childhood friend. “This happened because of you. So take responsibility, Choi Mi-joo.”