I'm a Pirate, but the System Wants Me to Learn Ninjutsu?

Feng Lei traveled to the world of One Piece, but was bound to a ninjutsu system. "Brother System, this is the world of pirates. Pirates, where do you get ninjutsu?" When Feng Lei learned the Sixth Form of the Navy under the guidance of Garp. [It is detected that the host is learning physical skills. According to the system's judgment, this physical skill is: Eight Gate Dunjia! [Acquire Ninjutsu: Eight Gate Dunjia. [Eight Gate Dunjia: Learning progress is 1%. "Wait? You call this Eight Gate Dunjia?" Feng Lei seems to have discovered a new world and has embarked on a road to the sky! I saw the ability to burn fruit. [Detection host is learning fire escape...] I saw the ability of the combined fruit. [Detection host is learning Susanoo...] I saw the Sensen Fruit ability. [Detection host is learning Wood Escape...] At the Navy Headquarters, Feng Lei opened the eight doors, summoned Susanoo, and turned into a Buddha on top: "From now on, I will end the era of great pirates!" [The introduction is weak, please move to the main text, thank you for your support! The veteran author's character is guaranteed!