Wonderland, once a beautiful planet, is now ravaged by the arrival of a virus called Reaper. Countless individuals have been infected, turning into bloodthirsty mutants that prey on humans, plunging the world into chaos.

A few infected humans, known as "new humans" retain their consciousness and get extraordinary powers. United under their leadership, they erected the last bastion of hope, the Eden Fortress, as humanity's final shield.

Together with your friend "Mainframe", you’ll recruit Agents, train them, and then assign them to various operations to cleanse the Wonderland.