Starting with two Kamui, they raised the flag of rebellion in One Piece.

Having died once, Li Mingyuan opened his eyes to find himself in the world of One Piece. Armed with a "graduation certificate" from Naruto and Sengoku, and the newly acquired Dual Kamui, the system allowed him to overthrow the World Government. "Overthrow the World Government? Me?" "An invincible eye technique that will blind you if used too much, against sea monsters with massive health?" He glanced at the sudden explosion of cannon fire outside the window, then touched his eyes. "Raising the flag of rebellion… what a troublesome task." "Although I don't really want to move," Li Mingyuan sighed, looking towards the smoke-filled harbor, "but if someone insists on throwing firecrackers in front of my window…" Deep within his eyes, something invisible seemed to begin to slowly rotate. "Then I'll just have to ask them to find somewhere else to cool off."