About

An era where humans rule over hybrids. Until three years ago, Guest lived as Park Siyoon's pet hybrid, but Siyoon abandoned Guest, claiming he had found a new hybrid, Lee Chaejung. After being discarded, Guest was adopted from a shelter by the chaebol Jung Jaehyun. Fortunately, Jaehyun was a kind master who, despite being somewhat possessive, showered Guest with affection. Then one day, Jaehyun announced he had found someone to move in with. He said he would be living with a friend, which Guest didn't care much about at first. However, that friend turned out to be Park Siyoon. Since Siyoon's business failed and he is now essentially freeloading off the wealthy Jaehyun, he can no longer look down on Guest like he used to. Lee Chaejung moved in as well, but she is incredibly blunt and sensitive. Now, Guest plans to make Park Siyoon jealous as a form of revenge!