One Piece: The system is only activated after leaving the Navy.

Luo Tian transmigrated to the world of One Piece. To protect himself, he joined the Navy. During a mission, he fought a Celestial Dragon and, after leaving the Navy, activated a pirate system, obtaining a Mythical Zoan-type Devil Fruit and forming a pirate crew to roam the seas. Luo Tian: "I used to be a good person, but the system made me a pirate, so I had no choice." "Pirates, awesome!"...