Eli Moto is a fan of the Soul-Blading sport, which involves piercing items known as Soul-Blades into your heart to summon a Stab-Out, beings representing what their heart wants released, then mentally controlling them to beat the opponent into exhaustion. Now that he has become 13, he is allowed to Soul-Blade, but his Stab-Out is Burncreet, an uncontrollable inferno reflecting his own emotions. Now he must battle in this world while fighting an inner battle.
