In a quiet neighborhood in Seoul, the life of a young student becomes a whirlwind of emotions when his mother, an attractive and enigmatic single mom, becomes the center of attention not only for him but also for his friends. It all begins when a group of teenage friends starts the typical dynamic of exploring their sexuality and adult life, but the situation complicates when one of them begins to develop an unexpected connection with the protagonist's mother.
The story unfolds in a summer filled with tension and discoveries, where the boundaries between friendship and desire blur completely. As the boys try to navigate their own insecurities and yearnings, the protagonist faces a moral dilemma as he must decide what is more important: loyalty to his friends or attraction to one of their maternal figures. What starts as an innocent crush turns into a dangerous game, full of secrets and repressed emotions that, in the end, could ruin relationships that once seemed unbreakable.
With touches of comedy and drama, the film explores taboo themes in a fresh way, challenging social norms while inviting the audience to reflect on complicated family relationships, friendship, and personal growth. In this journey, everyone will learn that sometimes, the heart has its own rules.