Former General Is Undead Knight - Volume 1, Chapter 10: 1st Class Adventurer, Cradle?

Evan crossed over, but he wasn’t worried at all… because he had the character template from the mobile game and five devil fruits obtained from a lottery draw with him.

As soon as Qin Feng opened his eyes, he was horrified to find himself lying in a drafty thatched hut. The problem was that he was still in his villa! What was even more horrifying was that there was another man lying under the blanket next to his legs!

“You, you, who are you?”

The man quietly sat up, exposing his upper body. He looked at him fixedly for a moment, then took a broken bowl from the table by the bed. He said in a muffled voice, “Wife, drink this water.”

Qin Feng rolled his eyes and fainted. Without permission, it is forbidden to reproduce or adapt it. Violators must be investigated.

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

There’s an ancient saying in Great Ruins, ‘Don’t go outside when it’s dark.’