“W-Wait…! Hyunseok, if we continue like this, we’re really going to be discovered…!” Do Hyunseok, Mi-joo’s long-time crush who lives next door. She has concealed her emotions, fearing that they might lose their friendship. “Do Hyunseok, down there….” By coincidence, she finds herself confined in a closet with her childhood friend. “This is all your fault. So you have to take responsibility, Choi Mi-joo.”