Hit Me One More Time, Teacher

After impulsively crashing her ex-boyfriend’s wedding, high school teacher Si-Yeon attempts to numb her lingering heartbreak at a hotel bar. The evening takes an unexpected turn when she shares a reckless one-night stand with a charming young stranger. Eager to leave the embarrassing encounter behind, she assumes the night will simply fade into memory and never complicate her life again. However, her carefully guarded routine shatters when the very same man walks into her school as a newly hired colleague. The situation escalates from awkward to deeply complicated when Si-Yeon realizes his true identity: he is Ha-Jun, a former student she taught years ago. What began as a fleeting moment of vulnerability now threatens both her professional reputation and her emotional stability. Determined to maintain strict boundaries, Si-Yeon struggles to keep her walls intact within the school's corridors. Yet Ha-Jun proves far more resolute than she anticipated. Boldly closing the distance between them, he refuses to let their shared history or that unforgettable night remain hidden. As he relentlessly challenges her defenses, Si-Yeon finds herself caught in a dangerous game where past and present collide, forcing her to confront feelings she desperately tried to bury.