One Piece System

One Piece + multiple heroines + no Devil Fruits + not part of the main crew + System + Momonosuke gets hitched up to pull a cart

A meteor shower that comes once every two thousand years appeared, and Tang Zhen excitedly took a pair of twins up a mountain to watch it. But a meteor struck him, transmigrating him to a parallel world in the Age of the Great Voyage.

In the 380th year of the Age of Navigation, Roger’s death shattered the old order. One Fleet Admiral, two Vice Admirals, three kings, four dukes, five admirals, six emperors, and the Seven Warlords all emerged, establishing a new order at sea. These top powers used the ocean as a chessboard and the masses as their pieces, locked in a game of their own.

When Tang Zhen and Nami, Robin, and the others shattered the existing order and became gods of this world, an even greater world was quietly beginning to unfold.