the so-called "demon removal" means sending the monsters who came from the "hidden world" that should have been in the "hidden world" to the "invent world" for some reasons back to the "hidden world" work. bbb。 one day, kasumi ashiya, a high school student possessed by a monster, came to the monster temple, which specializes in eliminating monsters by chance. the shop owner abe haruzai, who looked unhappy, came to the monster temple. for some reasons, ashiya started working as a benefactor of the monster avatar... abe and ashiya's monster removal combination and the monster story opened.