Kim Minseok's mum would always tell her son that if he didn't get outside and find himself a girl he was going to be 'left on the shelf' meaning that he was going to be left there whilst everyone else was chosen. At first Minseok didn't care, he had plenty of time on his hands... until his thirtieth birthday arrived, his cousin became engaged and his best friend had found himself a boyfriend and that was when it dawned on Minseok... he was about to be shelved...