Nah, the genre is targeted towards teen boys. So the hero is a generically nice person with no skills or social experience. His "useless" ability is actually a super-powerful skill that makes him a hero. All the girls fall for him because he's a nicer person than some other people in the setting, even if he does buy them as slaves. And any ~~bullies~~ enemies the protagonist has are easily defeated in a single move.

In some settings, the super-powerful ability is knowledge of the setting, so the hero has amazing powers due to being a nerd who likes fantasy stories. Like you, the reader!

And right at the start, the hero finds out there is an afterlife.