Jiang Enxia held feelings for Zhou Yi's older brother, Zhou Yan. This obsession of unrequited love stood as a barrier between her and Zhou Yi. Zhou Yi had secretly loved Jiang Enxia since they were young, used to hiding his true feelings behind bickering and pranks. Alone together by the pool late at night, the atmosphere between them grew ambiguous, nearly hugging and kissing, with their respective emotions in turmoil. At an island pool party, friends set up Jiang Enxia to meet a gentle male acquaintance, making Zhou Yi burning with jealousy. Trapped in her old obsession, Jiang Enxia was deeply caught in an emotional vortex, slow to tell her true feelings apart. Zhou Yi, who had hidden his unrequited love for years, suppressed his surging emotions. Beneath the sea breeze and fireworks, their hidden feelings gradually emerged; could she break free from her mental knot and see Zhou Yi's long-standing, unchanging partiality?