The heroine spends a whole year losing weight and transforming herself, eagerly waiting for the man she loves to return from abroad and hoping he will publicly acknowledge her as his girlfriend. Little does she know that all the affectionate messages and caring check-ins she has received throughout the year were actually sent by her beloved's best friend on his behalf. Her childhood sweetheart has someone else in his heart and has been brushing her off all along. When they finally reunite, he doesn't even recognize the completely transformed woman she has become, shattering her long-held devotion in an instant.