One Piece: Burning the Prison Clothes in the Setting Sun, Mihawk is dumbfounded.

If you travel to the world of One Piece and obtain the Flame-Flame Fruit, should you eat it or not?
Dunn's physical body traveled to the world of One Piece, and faced with this problem, he decisively ate the Logia-type Devil Fruit.
After becoming a Logia-type Devil Fruit user, Dunn activated his data panel, went to Shimotsuki Village to learn swordsmanship, and combined his Devil Fruit abilities to create the Remnant Flame Sword Technique.
Hawkeye: The Sunset Prison Robe? You call this swordsmanship?
Zoro: Junior brother... Senior brother's swordsmanship is too strong!
Kuina: My junior brother will definitely become the world's greatest swordsman!
Robin & Hancock: Dunn is amazing!
……
Sengoku: Dunn, you're not a pirate!
Dunn: Yes, I am.
Sengoku: No, you are not!
Garp, bruised and battered: Yes, he's not!