Koizumi Kanna is infatuated with the man who came to the restaurant she works at and ordered a burger with no onions. Little does she know, Toujou Ren is interested in her as well, but for a different reason...

Souhei, an honors student since he was little, is at present an elite dentist. Jin, who was a bad kid when he was little, is now a bad boy construction worker. Living in the same neighborhood, the two happen...

Ever since the gate to the Youma world was opened, the Youma have been coming through into our world and wrecking havoc. Luckily, there is a police force specially designed to take care of such a problem. So...