NTR: I became a noble?

Starting off as an innocent guy, the young man finds himself to be transmigrated into a body of a Viscount, a sickly old Viscount!! Scared and afraid of death, he reveals his true human nature, and begins to fulfill his carnal desires. Curing himself of his injuries, he becomes a new man, transforms into a young body, he still doesn't stop, and begins to put his hungry eyes on the corrupt Royal Bloodline.!! *It is a slow paced story, and there is world building.(writing for first time, there are some minor mistakes.) [Good Part Starts From Chapter 60 (you can skip the previous chapters)] ... [Mc takes consent from Woman not their husband] [Mc doesn't want to NTR every guy. He only makes their wife cheat for sex.] [Netori, Cheating, Blackmail] [World has superpowers, demon beasts, and demons]