A summoning to another world? Check. A Demon Lord that needs defeating? Check. A desire to have anything to do with any of this? Hell no! Welcome to the Dark Ages of magic, where all modern magician Yakagi Suimei wants is to get back home!

Zagan is a socially awkward, "evil" sorcerer. One day, he falls in love with an elven slave girl and purchases her. But being a poor conversationalist, he has no idea how to properly interact with her. Thus, their awkward cohabitation begins!