The Man Entrapped by the Past
Rather than focusing on Casshern, this episode follows Dio and his quest to reestablish his utopia by gathering wandering robots to form his army. During the gathering, a mysterious robot dressed heavily in tattered cloak barges in rambling about the death of Luna. It is revealed the robot’s name is Dune, a guardian assigned as Luna’s bodyguard. Leda attempts to dispose of Dune but in the end requires Dio’s help. It was in a fit of rage for being mistaken as Casshern, Dio viciously incapacitates Dune. As Dio with Leda by his side raises the spirits of the wandering robot with his speech, a broken down Dune once again wanders the lands morning the death of Luna.
Aired 04/12/2008EP 10 - The Man Entrapped by the Past

Casshern Sins
In the distant future, where cyborgs and humans struggle to survive after the war which destroyed the world, a being in white suit awakens. His name is Casshern and he remembers nothing of his own past.
In barren and dark dystopian world, where every being alive seems to hate his existence and the evil from his past wants him dead, Casshern, haunted by the flashes of his past memories has to survive and figure out who or what exactly he is and how he got to where he is now. But he does not know that he might not like the horrible truth of the past, hidden deep inside his mind...
Created as an intended reboot of Casshern franchise.