The Baby Raising A Devil - Chapter 323

Crossing to One Piece world, he became Roger’s younger brother.

The most feared Assassin in the world died because of vengeance.

Zhou Wenwen, who had traveled to a parallel world because of sudden death, thought that he could only live in such an ordinary life in this life, but the golden finger finally opened. He has a store where he can buy technological items and magic equipment to ensure his survival.

But the threat that followed made him realize that this place is not ordinary, because there are Transformers, Marvel, the Dark Portal from World of Warcraft, etc.

- Description from novelbuddy

Ruins stretched across the landscape in the apocalypse after the nuclear war.