Trash Weapon Fruit? Ever Heard of Ryūjin Jakka?

Transmigrating into the world of One Piece, Rosen becomes a student in Zephyr’s class. He starts with the Weapon-Weapon Fruit and a maxed-out comprehension talent. With his insane insight, he creates countless overpowered abilities. “Your comprehension is off the charts—by meditating on your own body and combining it with the Paramecia Weapon Fruit, you’ve mastered a unique skill: Senbonzakura.” “Your comprehension is off the charts—by meditating on your own body and combining it with the Paramecia Weapon Fruit, you’ve mastered a unique skill: Ryujin Jakka.” “Your comprehension is off the char…