The Story of a Man Who Is Reincarnated as the Shittiest Guy in a Doujin, but the Heroine Keeps on Coming Close to Him

Suddenly I remembered.This is the world of the adult manga I had originally read, and that I myself am the one who plays the role of the man who steals the heroine away from the protagonist.I don’t have that kind of taste, so please let the heroine get along with the protagonist.That’s what should have happened…So why the hell are they bothering with me?!