Seafaring: From the Start, I Hired Iron Man to Train Me in Weaponized Devil Fruits

After transmigrating into One Piece, Wang Dai gets a Power-Leveling System that lets him hire geniuses from countless worlds to train his own abilities or someone else's. So he promptly wins over Baby 5, who has the Weapon-Weapon Fruit.

Iron Man: The Weapon-Weapon Fruit? That's so damn perfect for me! Let's get nanotech armor, lasers, and nukes!

Batman: Stark, I think you and I could have a little chat about technological weaponry!

Ying Zheng: I've really become a dragon! Is there a way to live forever?

Bai Yue Kui: Let me power-level more! I want to save the apocalypse!

Nami: It's kind of embarrassing to get stronger while just lying around. Oh ho ho ho!

Luffy: With power-leveling, I'll have more time to eat, drink, and have fun!

Kidd: I didn't study much, so don't try to fool me! Is the Magnet-Magnet Fruit really the strongest?

Wang Dai: Look how sincere my eyes are! Let me find someone to power-level for you!

Magneto: The Magnet-Magnet Fruit is pretty good.

Misaka: Exactly!

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.