Kim Jongin came back after undergoing a psychiatrict treatment due to a car accident they encountered causing for his son's death and wife in coma. He received a post-letter from his ex-wife Do Kyungsoo written four years ago containing all his sufferings. What if he finds out the secret hidden from him? Will he choose to rewrite their story or erase it? Find out.

Do Kyungsoo was suffering from deep agony and frustrations, keeping the reason to himself, he left the man he loves, Kim Jongin. Now he's back, will Jongin let him back into his life again? Find out.