Diego Del Valles Cruz is a 23-year-old Puertorrican college student in Korea trying to rebuild his life after a devastating past relationship. Four years ago, his high school graduation day was shattered when he caught his then-boyfriend cheating on him. Now, in the present, Diego is focused on finishing college and keeping his head up. But his quiet routine is disrupted when he meets Rin, a tall, soft-spoken transfer student from Japan who steps into his life suddenly.