Haruka Kotoura, a girl who was born with the ability to read minds, is persecuted and ostracized because her ability exposes the weaknesses and moral failings of others. After transferring to a new high school, she meets Yoshihisa Manabe, a dim-witted but good-hearted boy who offers her sincere friendship and vows to stay by her side. Together, they join their school's ESP Research Club.