Pirate: It’s Not a Fantasy Beast, It’s a Fantasy God!

Bad news: I time-traveled right in the middle of a duel. Good news: It's not the Yu-Gi-Oh! universe, so I don't have to risk my life playing card games. Bad news: It's the One Piece world, where you cannot survive without fighting. Good news: I got a cheat system. Bad news: My original male body is completely gone! Good news: This new body is infinitely tougher, more hardcore, and stronger! "An undying body! Ageless and immortal! And then... the power of the Phantom Gods!" "Kaido, today you shall fall! Phantom God Rotation at One Million Horsepower—Superconducting Wave: Thunder Cannon!" ... "Hehe~ hehe~" "Osiris, Osiris? Wake up. Captain Kaido is calling you." Inside Onigashima's council hall, a red-haired girl muttering in her sleep is gently shaken awake. "Ah, huh? What's going on?" The girl looks up in a daze, only to be greeted by Kaido's enormous face. "Worororo~ Osiris brat, what were you mumbling about in your sleep?" "Oh, I was just saying the Governor's insight is brilliant~"