Lee Yena, a pretty senior who is sweet and demure in high school is famous for being bff with the cool and handsome yet popular guy in school, Kai. Kai actually liked Yena secretly. Another popular guy at the campus is Kang Daniel, famous being tall and handsome but sometimes is an arrogant brag and likes to bully others but not really a bad boy. One day, Kang Daniel was playing basketball in school where he noticed the beautiful Lee Yena sat at the corner reading a book while waiting for Kai