One Piece's Flow is Like Fire

"There are all kinds of things, all turned into ashes, and the blades are like fire!"
As the strongest and oldest Zanpakutō of the flame type, he came to this sea where pirates are prevalent, gorgeous and powerful ghosts, Shunpo who catches the wind and shadows, the infinitely powerful white attack, the unpredictable kendo, the reverse The beginning of the sky and even the swastika will be revealed by the protagonist... (This story and characters are purely fictitious, if there is any similarity, it is purely coincidental, do not imitate.)...