The Fourth Great General

After transmigrating into the world of One Piece, Allen is bound to a Sesshomaru template from the start. As long as he completes the missions issued by the System, he can obtain new abilities without limit and grow stronger without end.

Sengoku: Who exactly is Sesshomaru? What is this demonic power he speaks of? How can he hurt Logia Devil Fruit users without Haki?

The Five Elders: He personally brought the Son of the Devil, Ace, back to life. He must be plotting something even greater.

Imu: The power to bring the dead back to life surpasses even the Op-Op Fruit. I must uncover his secret.

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.