Reincarnated as the Final Villain's Vessel

Some are reincarnated as the shining, pure character known as the hero of the story.Others find themselves as secondary, unknown characters, carrying no weight in the flow of events.And then there are those who are reborn as villains… villains meant to be struck down, forming the very foundation of the hero’s growth.As for me?I was neither a hero,nor an ordinary villain.I was merely a cursed soul,reborn as an experiment within an organization that worships an unknown entity.Am I just a third-rate villain?… I wished it were so.Because the truth is far worse.I am the character who appeared in the very first scene of the game,even before the hero made his entrance.I am…the Vessel.