The Live-In Son-in-Law: Using the System to Fund My Retirement

After transmigrating into the world of One Piece, Li Qing spent a hundred years becoming the strongest. During a world-shaking battle, he accidentally shattered the world and returned to the modern era, where he became the good-for-nothing live-in son-in-law of the Xia family.

After more than twenty years, his divided soul died, and his main soul awoke.

At the same time, the era of spiritual qi revival had arrived.

The System unexpectedly awakened, but by then Li Qing's outlook had changed. He only wanted to enjoy a peaceful retirement.

System: A couch potato? You're such a good-for-nothing that you can't even protect yourself. How are you supposed to retire in peace?

Li Qing: I ate the Rumble-Rumble Fruit, the Tremor-Tremor Fruit, and the Dragon-Dragon Fruit. With all three powers in one, who can stop me?

System: You...

Li Qing: I am the world's greatest swordsman. I own several Supreme Grade swords, more than a dozen Great Grade swords, and a whole pile of other fine blades.

System: You...

Li Qing: There's also a whole pile of Devil Fruits in my soul space. Do I really have to tell you all that?

System: Well... retirement sounds pretty good.

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.