Death Knights

The Death Knights are an army of modified clones created by Umori Kenshiro and Eren Gyo.

Overview
The original development was done by Eren Gyo while he was a scientist for the Marines, but the World Government shut down the program, as it deemed it controversial and the public would oppose such practice. Eren Gyo continued his experimentation in secret with the support of Kenshiro.

Kenshiro created a laboratory in Zen where both of them continued the production of these clones. They developed them without personalities or racial distinction. As such, every clone is exactly the same, with the exception of the squadron leaders. Eren Gyo later refused to stay with Kenshiro and finish the project, so the clones are unfinished in their water tanks. Only a single prototype was finished, which only Eren Gyo knows his whereabouts. The almost finished squadron leaders are in the hands of Kenshiro.

Abilities
Different from regular clones, the Death Knights are bred as adults, achieving maturity in just over a year. This is due to the fact that their brains, with the exception of squadron leaders, are only programmed with specific functions. This removes the need for their brains to develop the more complex areas, which take more time. Their life source is a sort of inner biological core, similar to cyborgs, which are placed in several locations in their bodies. Squadron leaders, on the other hand, take two years to develop, given the fact that their brains are much more advanced and are capable of complex analysis and interactions. The death knights are designed with a durable exoskeleton and iron skin, by altering their Lineage factor. They ignore pain and are designed to continue fighting until their bodies cease to function. Their combat prowess is also downloaded into their brain, a process which is possible after several warriors "recorded" their fighting style, using neurological transmitters to record specific movement patterns and techniques, which are then "downloaded" into the cerebral cortex of the clones.

After they are finished, they are supposed to be extremely proficient in hand to hand combat, swordsmanship and the use of guns and other weapons. They are designed to obey their creators and the squadron leaders. By designing a special remote, they can be "shut down". The only exception seems to be the original prototype, being a perfect, independent clone. Even if they are not programmed with the capacity or coming up with complex tasks, they are given the capabilities to do so, as such, they can perform such tasks only when ordered to.