Kim Jaejoong and Jung Yunho are two popular teachers in an elite high school in Seoul. They have images that opposites each other and can not get along. Both of them have their own fan clubs that being rival with each other as well. When they are paired by the headmaster to solve the strange case happened in the school, all the ruckus begin to happen. Both men start to see the real side of each other and somehow, stranger things happen.

Kim Jaejoong knew he was one of the most handsome men in Asia. As a famous model, he demanded to be only paired with someone at same 'level' as him. So he couldn't understand why he continued to pay attention to someone so ordinary with small face like an alien, aka Jung Yunho? He must have contracted some diseases, right? Right?