
I like this story. The only thing that bugs me about these type of stories is that he doesn’t bring back any of the knowledge to his time and share it so that people become stronger faster and the future apocalypse is stopped. They always get the good stuff and then dish out a little tid bit. How’s that save the future.

Hisbplan is to share that stuff, which is why he shared those advanced potions. But before he can share the important stuff he has to become strong enough to defend himself from people and governments that want to monopolise him. That's why he hasn't shared anything big yet, he still can't protect himself of the consequences and he also can't trust the truly strong to protect him
This is a reupload of https://www.mangago.zone/read-manga/return_of_the_martial_arts_genius/