Reiji and Hikaru face off once again, but their battle is interupted by SinnSaber. Now the two rivals must work together to defeat this powerful dragon. But even their combined strength is not enought to defeat him. They are saved by an old man that warned Reiji earlier about SinnSaber. In return for the good deed, Hikaru and Reiji agree to save the old man's daughter from some bandits. In the process, they encounter SinnSaber once again. Reiji and Hikaru attack together, but Hikaru can't stand the power and backs off. Chibi and SinnSaber have one final clash and both are engulfed in a huge explosion. Reiji emerges as the victor with one new ultimate weapon.