Vampire from the Start: Hancock and I Rule the Seas

[Vampire Protagonist + Mythical Beast + Multiple Identities + Hancock + Farming + Western Fantasy]

After transmigrating twice, Yaze, who had already transmigrated into a vampire, transmigrates again into the world of One Piece. After meeting Empress Hancock, he awakens the [Empress Development Plan System]. Any action that helps Hancock earns him a reward from the System.

Later, after eating the Mythical Zoan Devil Fruit rewarded by the System, the Frost Fruit, Model: Bingyi, Yaze joins the Marines as Hancock’s undercover agent. He also uses his other mysterious identity, [Nightshadow], to sabotage the World Government’s plans.

First come the Seven Warlords, then the Four Emperors, and eventually he establishes a new regime in the second half of the Grand Line, annexing the World Government’s sphere of influence.

The Five Elders: “We were so focused on dealing with the Revolutionary Army and Nightshadow that we never imagined Boa Hancock would grow this powerful.”

Sengoku: “Damn Boa Hancock for leaving the Seven Warlords! Yaze, I appoint you Ice Dragon Admiral, in charge of capturing Nightshadow and Boa Hancock!”

Yaze: “What? I have to hunt down myself and my own wife?”

Years later, Yaze and Hancock completely overthrow the decayed, backward government of the Celestial Dragons and establish a prosperous regime where all people live as one!