[Three-color Haki + Kendo + System to travel through the original pirate world + absorb demonic abilities]
Urban high martial arts version of the pirate world.
High school students here practice martial arts, awaken their Haki, and take artificial Devil Fruits. Just to fight against the demons entrenched all over the world.
"The Four Bandit Emperors" "The Three Generals of the Government Army" "Vegapunk Technology Tree" "History from Eight Hundred Years Ago"
