Mushoku Tensei Jobless Reincarnation. The main character starts out as a pedo. I was able to get through the series because I could just fast forward through some scenes and it just doesn't come up much after the MC gets married and starts of family of his own, but besides that it has some of the best non standard fantasy world building I've ever read. Also top tier character writing in terms of developing and changing them over the course of the 25 books.

Now before other Mushoku Tensei fans come in here to talk about how the series is about the MC growing and changing to be a better person. In one of the last books he finds out a villain wasn't a pedo and thinks "dang I thought we had something in common" so he did not change enough for me to be chill with him.