Isekai, but good

You know the story: A man with no characteristics has nothing bad on his mind and suddenly transported into a fantasy world, that for some reason runs on poorly balanced MMORPG rules, where the MC is totally overpowered and also a bunch of women is hopelessly attracted to the MC.

One of these women is his sister.

Another one looks like she's ten, but really is a thousand year old dragon.

That is really bad.

But does it have to be that way? I say no!

So how about you follow an interesting character, through an erotic adventure in a world that is not like one you've seen so often before