"pieces of shit.. I'm going to miss my princess's birthday because of you.."

Mister Frederickson Sanchez. The greatest demon hunter now retired working as a Mister Frederickson Sanchez. The greatest demon hunter now retired working as a professor at a private university is in a hurry not to miss the birthday of his beloved daughter Rosanna.. However, faced with a possession before his eyes, Frederickson finds himself forced to break his pact of no longer intervening with demonic forces to save his students... oh, In fact he just needs one of the living students to help him buy a suitable gift for his daughter.. what on earth are you supposed to give young people as gifts these days?