One Piece: The Mera Mera no Mi, Developing Ryūjin Jakka

Transmigrating into the world of One Piece, Dun En obtains the Mera Mera no Mi. Should he eat it or not? Dun En, physically transported to the One Piece world, decisively consumes this Logia-type fruit. Becoming a Logia user, Dun En activates a data panel, travels to Shimotsuki Village to learn swordsmanship, and combines his fruit ability to create the Zankyu swordsmanship. Mihawk: "Zangetsu no Goku? You call that swordsmanship?" Zoro: "Junior brother... my senior's swordsmanship is too strong!" Kuina: "Junior brother will definitely become the world's greatest swordsman!" Robin & Hancock: "Dun En is amazing!" ... Sengoku: "Dun En, you are not a pirate!" Dun En: "I am." Sengoku: "No, you're not!" Black-and-blue Garp: "Yeah, he's not!"