10 years ago, Shim Chagnmin left his first love and best friend Kim Ryeowook, his country and the people he cherished behind and went to Japan. He had a chance to confess, but hadn’t done it, making Ryeowook marry someone else, breaking Changmin's heart into a million pieces. Despite the fact that Ryeowook had a happy, lovely family, Changmin still loved the man, hiding his feeling deep in his heart.

His love never faded, even if around five years ago Ryeowook and his family disappeared without a trace. Changmin searched for them, but couldn’t do much as he still lived in Japan.

But a twist of fate brought Shim Changmin an opportunity to come back to Korea.

Will he search for his unrequited love- best friend, or forget?

Or Kim Ryeowook didn’t want to be found?