The famous tennis world champion Don Sri Chang is the center of attention. Not only is he good at tennis, he is also successful in love, with a superstar girlfriend who is the nation's sweetheart. But when he proposed to his girlfriend, he was unexpectedly rejected, and his girlfriend turned to a rock star. Don was hit hard by this, and for several months he was alone immersed in the pain of losing his girlfriend. Unexpectedly, his childhood sweetheart, Lu, who he had not seen for a long time, suddenly appeared, bringing a glimmer of hope and warmth to his life, and always accompanied him when he was depressed. Can this girl become a turning point in Don's emotional journey?