The submissive male lead, bullied and forced to wear provocative lingerie, is locked inside the dorm room of the girl he secretly loves. There, he unexpectedly encounters the dominant male lead, a mafia figure hiding in the room, and the two end up sleeping together.
The next day, the mafia man appears at the front of the classroom as his new professor. Using the future of the boy’s crush as leverage, he coerces him into becoming his long-term lover. Though he tries to resist, he gradually falls deeper into the dangerous attraction, leading them into a forbidden professor-student romance.
