Reincarnated as the Demon King's Son - Chapter 606 Enggage

Through a mysterious portal, Chen Jin arrived at this strange place – a post-apocalyptic world where civilization had been destroyed.

Consequently, he found –

A piece of metal scrap
A robot trash collector
A battleground
A city
A ton and more of gold
A copy of high-tech documents
A…
In short, Chen Jin found a planet.

- Description from Novelupdates

Horrible Accident? CheckOtherworldly Soul Yeeting? CheckTaking over some schmuck's body who died around the same time? CheckUnable to cultivate because the aforementioned schmuck's constitution is all messed up? Double CheckIn the world of Valresta where the great and powerful cultivate an energy called aether to get to where they are, Zhen Liu (Thomas Lee) is physically unable to despite having the qualities to do so.But due to a twist of fate, Zhen Liu is given the ability to create kaijin, strange and monstrous warriors to fight in his stead.By using this world's laws combined with his knowledge of Earth, watch as Zhen Liu stands above the so-called aether saints to become the one and only kaijin lord!“What the hell is a train”?!“Something that's about to kick your butt. Get him”!“Yes my lord”!

A young orphaned boy named Mu Yi is saved by an old travelling Taoist Priest. They travel the world ‘scamming’ people by ‘exorcising ghosts’ and ‘slaying demons’, that is until the old Taoist Priest dies and Mu Yi is forced to realise that all is not as it seems. He was told stories of armies of ghosts, hordes of zombies, horrifying demons, and worst of all, the cultivators who controlled them.

Mu Yi takes his first steps towards rising to the top of this dark and cruel new world.

- Description from Novelupdates