A Zanpakuto to Rule the Grand Line

After transmigrating to the world of One Piece, he obtains the Zanpakuto Evolution System, which lets him unlock all kinds of Zanpakuto.

From then on, Klein's dual-blade Zanpakuto style ** rules the seas. He can wield Ryujin Jakka, which engulfs the ocean, Hyorinmaru, which freezes heaven and earth, or Senbonzakura, which scatters into a storm of petals.

As he unlocks one Zanpakuto form after another, he becomes the undisputed world's greatest swordsman.

From the start, he is raised by the Amazon Lily kingdom.

And so he becomes the darling of the entire island, as well as Hancock's childhood friend.

Mihawk of Kuraigana Island: "Klein is my best neighbor. I even spar with him from time to time."

Red-Haired Shanks: "Klein is my friend's neighbor. Do me a favor and don't mess with him."

Klein: "I protect Amazon Lily. Whoever crosses me, no matter how strong, will die! Draw your swords!!!"

His blade is named Fierce Ghost. When the Fierce Ghost roars, nothing in the world can know peace!

This novel and its characters are purely fictional. Any resemblance to real people or events is purely coincidental. Please do not imitate.