Fight for your life
The Sovereign Khan controls from the summit of Megacity S1-9 with iron and flesh hands. An enraged warrior sets out to slay him beneath the city's decaying foundations. Slave Zero X takes place 5 years before the events of Slave Zero, in a world where horrible, living robots known as Slaves are poised to become the latest weapons of war in humanity's long and deadly history. The Guardians, a hidden organization of warriors, want to prevent this biomecha from being released on the world, but one swordsman among their ranks has a different plan: use the enemy's own weapon against them.