Kris, Chanyeol, Kai and Sehun are the most popular guys in school, the reason for their popularity lies mainly on the fact that they can transform into the animal they have inherited from their parents. People that can turn into animals are not that common so the students at school are envious of them. The group think they are the only ones in the school that can turn into animals, but soon find out there is another group within the school that can do the same.

Baekhyun, Kyungsoo, Luhan and Tao are the other group that can turn into animals within the school and they know that Kris' group can do the same. No one apart from the school knows that the most popular gus in school aren't the only ones that can become animals, and this is the way they like it.

Both groups get sent a letter stating that they are to attened the schools sports hall every Wednesday after school, so that they can be taught how to deal with their animal beings and how to get along with others that can do the same. Kris' group thinks this is stupid while Baekhyun's group don't want to go because they will have to spend time with the stars of the school.

What will happen when Kris' group meets the others for the first time? How will Baekhyun's group react, knowing they have to attened this club with the guys they have been staying away from the entire time that they have been at school for? Together with the help of two teachers, the boys will have to learn to get along with one another.