As Vice-Captain, I Shook the World at Marineford

Three years after transmigrating to the world of pirates, the Black Dog Pirates, founded by Lei Yi, were on the verge of disbanding.

Just then, the System activated and delivered a mysterious gift!

A tiny kitten!

"Ding! Your cat thinks you're too weak, so it sneaked into Sky Island at night and copied Enel's Rumble-Rumble Fruit for you!"

After eating the Rumble-Rumble Fruit, Lei Yi became a Devil Fruit user!

At dawn, intruders boarded the pirate ship, and Lei Yi spotted them!

The intruder was none other than Luffy!

So, tempted by a System mission, Lei Yi became Luffy's first mate and grew stronger alongside the crew!

At the Summit War, Luffy tried to save Ace but was blocked by the Marines.

With no other choice, Lei Yi stepped in and challenged three Marine Admirals at once!

Akainu was left dying, Aokiji was gravely wounded, and Kizaru backed off!

The entire world was left in shock!