Fairy Tail: Return from One Piece!

I travel and fight in the pirate world! Navy, pirates, bounty hunters, all the masters who came to challenge me, all fell to my magic! I am proficient in all six naval styles, three-color Haki, swordsmanship, and physical skills; Shanks is my best friend, and Bucky the Clown is my registered disciple; Now, I, Gildarts, am back from the pirate world! Acnologia: "No! How can there be someone like you among humans!" Zeref: "Maybe only you can really kill me!" Natsu: "Gildarts! I have learned Haki, can you teach me other things?" Erza: "I still don't understand the sword skills you taught me before. Can you give me some more guidance?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.