When Kodaka Hasegawa finds out that he will be transferring to a new school, he is determined to make a positive impression, and maybe even some friends. However, Kodaka discovers he is out of luck when he immediately gets labeled as a violent delinquent due to his blond hair and intimidating expression. Although a month has passed, Kodaka is still alone thanks to his notorious reputation. However, his life begins to change when he finds fellow loner Yozora Mikazuki talking to her imaginary friend in an empty classroom.