What would you do, if you could see the spirit "Yokai?" This is what happened to Oikawa Haruki, a 17 year old student. One day because of an incident he kisses Sakura, a girl with the ability to see "Yokai" As they kiss, Sakura's abilities transfer into Haruki's body. From that day on, accompanied by Sakura, Haruki had to change his life from a normal student to a "Yokai" exterminator. He has the responsibility to purify the "Yokai" who are enveloped by hatred and sorrow.