One Piece: I'm Destined to Be the Son-in-Law King! - Chapter 253: Was This Your Plan All Along?

After dying, Chen Heng finds that he has transmigrated to an alternate reality: everything is the same, except the world is now a Wuxia world heavily influenced by martial arts! Not only this, he discovers that he has a Fantasy Simulator, from which he obtains rewards that make him incredibly powerful in his new reality as well. Martial arts, immortal cultivation, and overpowered abilities–all of this begins from a single simulation!

In a world where human and monsters relied on mystical fruits and their inner power to fight for dominance, a lost soul was thrown, given the powers from all the other worlds he’s known. But there was a catch; he had no control over what power he would get! With knowledge beyond that of most, he sails his path to the top of the one piece world!

- Description from Novelupdates

Her – a glutton without troubles or worries who crossed over and became a young fat chick with a deep vengefulness.

Su Mo, a late bloomer, was introverted and bad at socializing with strangers.He thought his life would stay pretty ordinary, but everything changed when he started playing the popular game Star Ring. He unexpectedly rediscovered the joys of life and set off on a journey to claim the throne.