Faced with my female worm-like fiancée's delicate tentacle, looking at the 'inhuman heterosexual affection max ability' that I had acquired, I knew that I would escape this marriage! But what I didn't know was that this... is only the beginning. I, an ordinary human teenager, in the course of a trip by plane, somehow crossed into this world full of aliens. The "people" here, look down on my handsome appearance from a human point of view, but instead worship the huge, scary-looking demons. As the son of the demon king, I not only do not enjoy the respect due to my status, but also I have to be forced to marry a gigantic female worm as the wife of a political union. This marriage is destined to be a nightmare, I, can not be used and destroyed by a female worm, I have to escape from this marriage!