Pashiri na Boku to Koisuru Banchou-san

Unoki is frequently bullied, and high school brings no relief. From the start, the school's most notorious student, Toramaru, takes control of him, making him run her errands. She tells him, "Be mine," but he believes he's being forced into servitude, while she assumes they're in a romantic relationship. This leads to a series of comedic misunderstandings between them.