Byun Baekhyun, a new kid at school at Busan High. He was very cheery and joyful. But he's also observant. And then he met his classmate, Park Chanyeol. He couldn't really talk. He communicates with other people with his whiteboard. Baekhyun knew Chanyeol is hiding a secret and is determined to find out everything about him. Until he accidentally found Chanyeol singing in an abandoned music room. The plan of finding out Chanyeol's secret falls into a plan of having Chanyeol to open up to him or even date him. "I know your secret." "...." - - - - - - - - - - - - - - - - - - - - - - - "There's no point of hiding it, Chanyeol." "......." - - - - - - - - - - - - - - - - - - - - - - - "I love you.." "......" - - - - - - - - - - - - - - - - - - - - - - - "Goodbye." ".... S-stay."