Reborn in One Piece: My Killer System

As the world's untouchable 'King of Killers,' I chose death over capture, detonating a city block with me inside. But instead of oblivion, I woke up… a helpless newborn in a world of devil fruits and sea kings. Just as despair threatened, a cold voice resonated: “Ding! Demon System Activated. Welcome, Host, to the world of One Piece.” My system, personified by the ruthless general Esdes, was my only hope to reclaim my strength and dominate this chaotic era. Now, as the hidden disciple of the legendary Dark King Rayleigh and wielding a mysterious, broken sword, I’m not just a baby. I am Blood Song, the reincarnated Assassin King, destined to carve a path of blood and power. Will this world tremble before the might of a truly unhinged killer?