A Thesis on That Monster

I was possessed by a character in a fantasy novel I read under the instruction of a wicked professor. But not a capable protagonist, nor a wonderful helper… What? An extra? All the better. I'll leave saving the world to the protagonist, and I'll study monsters as I've always wanted. Under Professor Diabel Asrein, known as the greatest genius in this world - my second graduate school life begins. Introduction to the Work: *Setting/Genre: Fantasy, Western-style *Keywords: Master-Disciple Relationship, Age Gap, Social Status Difference, Beautiful Top, Genius Top, Proactive Bottom, Capable Bottom, Dimension Travel/Soul Swap, Royalty/Nobility, Non-Human Being, Incident, Growth, Bottom's Pe...