Sword of Blood  

, ソード・オブ・ブラッド

The Red Knight, Blue Knight, Mirror Knight, and Hyper Knight were once magical machines created by the Sumar Empire using Dark Armour. These knights were kept hidden in coffins by Pazuzu but have now awakened after his death. As a result, they roam the Tower without a master, attacking climbers as they see fit. Gremica has revealed that these knights possess unique characteristics carried over from their individual Dark Armours. Henaros motivation for climbing the Tower is to recover these four knights by Amina's orders and protect the king's shadow.