A beautiful masked knight who appears to aid the outnumbered Union Army. He knows everything about OZ World, from the weaknesses of the machine soldiers to ways to escape the siege. His true identity is Treize, who escaped from OZ World.
Treize infiltrated the depths of the Valley of Machine Soldiers alone and rescued the captured Twin Knights. His love for his subordinates is stronger than anyone else's. The information the two bring to Treize is a great help to him.