Rokudou is a loser, and everyone knows it. He is elected in school, receives malicious looks from passers-by, and can only muster the courage to complain in secret with his equally unhappy friends. Seeking to change his life, he desperately uses an ancestral artifact transmitted in his family for generations: a scroll that is able to subdue all demons. However, in the modern age it has a different effect: it causes all bad girls to fall in love with it.

...And then, things go ballistic when he meets the delinquent beast-on-a-girl's-body Himawari Ranna, who hopelessly falls deep for him.