MTL - Monster Factory - Chapter 13 : Everything is ready to start

Leiyin accidentally crossed into the One Piece World, and accidentally obtained the Naruto System.

Failing in his job hunting, Sanada Kyouichirou was hopeless in this society. When kyouichirou had thrown himself towards the bottom of a cliff. When he woke up his body had returned towards when he was in fifth grade of elementary school. He did not want to have any regrets in this life so he had decided on building up an harem in this second life.

The elder sister that he admired, a senior and president of the student council at a school for rich young girls, a strong minded upper classman at school. The poison fang of Kyouichirou who had pretended to be a innocent child attacks those girls.

In the era of surging big pirates, pirates are evil? Is the navy justice?

The green pheasant seals the sea, the yellow monkey turns on the lights, and the red dog ignites!

Backed by the three major admirals of the navy, the captain of the Destiny Pirates, the legendary fisherman, the veteran card dog, and the new Pirate Emperor Cui Ze Fite said, of course—

Victory is justice!

- Description from novelbuddy