In the bustling streets of Paradyse City, a covert organization is on the brink of revolutionizing the black market arms trade with a dangerous bio-weapon. Disguised as an entertainment media outlet, they have devised an ingenious plan—a live combat tournament show—to test their creation.

Amidst this backdrop, a young outsider arrives in the city in search of his missing brother. His path unexpectedly crosses with that of a former detective, recently let go from the police force, who is secretly investigating the disappearance of a colleague. United by circumstance, these unlikely allies embark on a thrilling journey as they unravel the mystery and find themselves entangled in the live combat tournament known as Showdown.

As the tension rises and secrets unravel, our heroes must navigate the treacherous world of the tournament, where survival is uncertain and betrayal lurks at every turn. With the fate of Paradyse City hanging in the balance, they must confront the sinister organization orchestrating the chaos and expose their nefarious plans. Brace yourself for a gripping showdown that will determine the destiny of both heroes and villains in this pulse-pounding tale.