Yuwa works as an office worker at a small advertising agency. In this company where only men work, sexually harassing remarks are commonplace. One day, Yuwa is forced to come to work without a bra, which is discovered, and she starts to get teased by her coworkers for being "No Bra Girl." "No matter how much no one pays attention to you, I don't think it's right to come to the office without a bra." While working overtime alone, her boss massages Yuwa's shoulders and gradually moves his hands down. "If you don't wear a bra, your nipples will rub against each other and you'll feel it, won't they?" And so began her daily nipple harassment.