Because I just need to say how bad it was in the anime compared to the manga.
In the manga:
Nanaya loses his arm when it was cut off by Shirogane and gets his head smashed by Homurabi.
In the anime:
Nanaya is fighting Akira (no blood in the anime, sadly T__T) and Shirogane covers Akira from an attack by Nanaya (I think). Nanaya is distracted (eh, I don't know why. I skipped through a few parts 'cause it was getting boring >.>) and then shot in the back a few times with arrows coming from a crossbow being used by our (easily forgettable) shota character Haruka.
Comparing these two together.......the manga version was WAY more epic. Didn't think they'd make Nanaya so weak and have a non-epic death in the anime (seriously, a crossbow??!! head smashing is way better than that).