This is a fairly unique premise, that is not just horny bait or just pure wish fulfillment. The MC is a genuine reborn into an NTR manga he read. however, he will attempt to do everything in his power to avoid NTR. Some key points will play out fundamentally differently, but others are pretty much fated and the only difference is the outcome. honestly, there really isn't much that can be said without spoiling anything, but if you're looking for something Spicy, but not degenerate (unlike Domestic na Kanojo), and not being straight-up cringy (Rent a Girlfriend). and yes, while it's not porn, I woulddefinitely consider it NSFW.