Dub wakes up one day and realizes he's sitting in a blank white room. The only thing that isn't pure white in the room is a strange black box floating in the air at head height. A few seconds later, he suddenly feels compelled to stick his head into the box.

Dub is suddenly told that the 'Objective' is to 'Fight' and the 'Countdown' is null. Across from him is his first opponent.

And so, the endless fight begins.