This is a story about Kai who's unhappy in love with Minzy, who is his best friend since the kinder garden. As we all know, love can be wonderful and also rough, in Kai's case it's a total hell. While Kai is crushing on his childhood friend, Minzy is all over Kyungsoo. That's right, a love triangle. Kyungsoo is that typical popular guy, especially among the girls. As soon as Kyungsoo have realized that Minzy is the girl who Kai loves, he turns Kai's life into one big mess. Who knows how this story gonna end? ..