Thousand Demon Blade: Overpower All Realms of One Piece

Jingtian transmigrates into the world of One Piece and awakens the All-Realm Battle System, unlocking the Thousand Demon Blade at the very start! The barriers between dimensions shatter. Greeza, the Evil Sword Immortal, and Acnologia descend upon the ocean from other planes. During the Summit War, he summons two meteorites to overwhelm Whitebeard. The Dragon Emperor becomes his mount, and the Evil Sword Immortal swears unwavering allegiance to him. Shanks admits that Jingtian is the sole unpredictable variable across the entire sea. Holding the Thousand Demon Blade in hand, Jingtian proclaims: One day, I will lead the Akatsuki and reign supreme over all realms and seas!