I Reincarnated as The NTR-ing Scum in an R-18 Doujin, But For Some Reason, The Erotic, Big-Breasted Heroine Keeps Coming on to Me~

"Why is the heroine seducing me?!"

When I woke up, I found myself in the shoes of the despicable scumbag from an R-18 doujin I once read. Why, out of all possibilities, did I end up reincarnated as such a villain? Initially depressed about it, I soon realized that I had been given a chance to redo my student days with a youthful cheat body. If the original owner of this body was a villain, there's no need to feel remorse for taking over their consciousness. As long as I refrain from stealing the heroine, the protagonist should reach a happy ending without suffering a mental breakdown. I don't want to take on the responsibility of ruining someone else's life by succumbing to temporary pleasure. Because this is reality, I can't bring myself to engage in NTR. I've decided firmly to maintain a proper distance from the main heroine to live my own youth under the sun. ...Yet, why is the heroine seducing me?