These simulations are overseen by the goddess Exiva and her Motes, a group of sentient computers, and protected by their champions, the Blade Strangers.

A cybernetic being known as Lina appears and begins consuming the servers' data, wiping out whole worlds and defeating all of the Blade Strangers.

To protect the universe, the motes summon heroes from worlds Lina has not yet reached, altering their memories to make them believe they are participating in a fighting tournament.

The one left standing will be named the new Blade Stranger in the hopes of awakening their power and allowing them to defeat Lina.

[11] According to director Toshinobu Kondo, the development team initially struggled to maintain balance due to some characters possessing weapons that gave them extra advantages.