The story follows Summer, a young woman who has been secretly in love with her childhood friend, Ali, for five years. Their friendship takes a painful turn when she learns that Ali is dating her older sister and is about to propose. Devastated by the news, Summer seeks solace in a nightclub, where she impulsively kisses a handsome stranger. Just as the moment intensifies, Ali unexpectedly arrives, sparking a confrontation filled with jealousy and unresolved feelings. In a bid to reclaim her agency and mask her true emotions, Summer falsely claims the stranger is her boyfriend, challenging Ali's concern and urging him to stop caring about her.