Kim Taehyung is an ordinary young man who lives alone in a rented house, in Gangnam after moving out from Daegu to Seoul City to make a living.

Fervid about photography, Taehyung, who is also a spendthrift, would often invest his money on the latest cameras of various models and brands, fancy photography equipments as well as camera bags and cases. His immense interest in expensive fashion and his partying lifestyle certainly did not help him at all when it comes to managing his finances well, leading to him often pay the rent late - on purpose.

His life instantly changed when he was being forced to live together with a stranger who, to him, is an uptight, dull and a naggy no-fun soul, Bae Joohyun