Yongguk temporarily loses his sight. During this time he meets a mysterious friend. They get along well together and enjoy the same things until one day when his sight returns. However, the man disappears suddenly leaving Yongguk with only his voice as remembrance. He knows he has to find this guy somehow, all he knows is his name- which could possibly be a fake one. And If he does ever find him, will his friend be what he expected?