Kim Kai was know as xoxo highs' bad boy along with his best friend and partner in crime , Park Chanyeol. Some thing interested Kai about one of the schools nerd Do Kyungsoo, he was a small boy with a lot of secrets this interests Kai he was wanting to find out about the boy kai starts to bully him and soon feelings grow stronger and other fade away 

Park Chanyeol is best friends with Kai he meets another boy he was a close friend off Kyungsoo as he was keeping the other boy distracted so kai can cause havvock he soon starts falling for the music obsessive nerd and does anything to be close to him even losing a certain friend in the progress