The Nerd Next Door Turned Out to Be the Magic Tower Master

I got possessed right before graduating from graduate school. Before finding a way back, I decided to enjoy some of the pleasures I had put off due to studying. Like dating, dating, and more dating. As luck would have it, the face of the man who moved in next door was just my type, so I made up my mind to date him. "C-Can I keep my robe on? I'm too shy to show my face..." Sure, he's a nerd who clings to his robe just like an engineering student clings to their plaid shirt. "...If I were that Master of the Magic Tower, would you abandon me?" It seems this nerdy guy is the exact same person as that notoriously psychopathic Master of the Magic Tower. Well, isn't that not really a big problem? Compared to the fact that the world of the novel I thought was a romance is actually a horror survival thriller targeting my life.