It was a month after Kyuhyun, the stupid cat (according to Seohyun), got back to Seohyun’s apartment. Sunny came up with a brilliant idea –a silly idea, Seohyun had corrected- to exchange their pets for a week. There were only two simple rules. You can’t meet your pet when the exchange is occuring

Kyuhyun is a cat. Yes, a cat, and much to Seohyun’s dismay, he is also known as her pet. He is not a pure cat though. He is a half-human and a half-cat, while Seohyun is a pure human. Unfortunately, they never get along, or more like in Seohyun’s part, she does never get along with him. Until one day... When the truth is revealed...