To take revenge on her cheating ex-boyfriend who shattered her dreams, a female soccer prodigy disguises herself as a tomboy, takes her brother's place, and enrolls in an elite aristocratic boys' school. Unexpectedly, she becomes the "male roommate" of the arrogant, hot-tempered heir to a financial empire—sleeping right across from him. In a high-stakes arena where her true identity could be exposed at any moment, a forbidden sweet romance unfolds, making the straight team captain fall hard, while she delivers satisfying revenge and a triumphant comeback.