Just read through this and caught up. Quite enjoying it, though there are some little niggling inconsistencies;
If his past lives haunted the newer lives for some time, why wasn't any of his supposed 'evil' lives effected?
It said that he struggled quite hard to make the mental library for himself, but then also says that the library was made naturally for him because he'd be destroyed by all the information and abilities, so which is it?
Is he the only person like this, and if not, would anyone else of similar disposition recognize his abilities?
And when is the dragon who killed him as a slime going to come back as a hot waifu and schmooze our MC?