Seafaring: My Hamster Treasure Stores Powers That Can Be Returned Tenfold Across Worlds

Aier transmigrates into the world of One Piece.

He awakens the Hamster Treasure Hundredfold Cashback System.

Store one point of Constitution, and ten days later, get one hundred points back.

Store one ten-thousand-Beli bill, and ten days later, get one hundred ten-thousand-Beli bills back.

That's not all. Every so often,

he gets a chance to trigger a storage jackpot with Hamster Treasure.

Store a Bone-Bone Fruit, and a jackpot returns Susanoo.

Store one point of Constitution, and a jackpot returns the Sage Body.

Store a Supreme Grade Blade, and a jackpot returns the Zanpakuto Ryujin Jakka.

Store a Blood-Blood Fruit, and a jackpot returns the Wood Release Kekkei Genkai.

Store a Bat-Bat Fruit, and a jackpot returns the Black-Winged Demon form.

Imu: "In my eight hundred years, Aier is the most troublesome enemy I've ever encountered!"

Starting by taking control of the dark underworld, he fights his way step by step to the Holy Land of Mary Geoise.

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