Ep. 20: Casshern and companions reach Luna's castle, witnessing her refusal to heal Dune.
Aired on February 16, 2009

Casshern, Lyuze, and Ringo arrive at Luna's castle, reuniting with Dune. They are shocked by the many robots awaiting healing. Casshern discovers a robot previously healed by Luna, now severely beaten by others. After Dune is critically injured by bandits, Luna refuses to heal him, allowing him to die. This drastic change in her behavior angers Casshern and his group. Meanwhile, Braiking Boss visits the graves of his fallen subordinates, and Leda learns of Luna's location. Casshern confronts Luna, questioning if her current path truly offers salvation to the world.
Episodes
- Ep. 16 · Casshern and Lyuze find robot remains while Dio confronts Mars and Vulcan
- Ep. 17 · Casshern encounters robotic children while Leda attacks them to find Luna.
- Ep. 18 · Lyuze reflects on her shifting feelings toward Casshern amidst complex scenarios.
- Ep. 19 · Casshern and Lyuze face robots while Lyuze fears her decay and envies Casshern's immortality
- Ep. 20 · Casshern and companions reach Luna's castle, witnessing her refusal to heal Dune.
- Ep. 21 · Casshern Confronts Dio's Army After Ohji Reveals Luna's True Nature
- Ep. 22 · Dio returns Casshern to Luna's castle while Leda demands selective healing and Casshern prepares for a final battle.
- Ep. 23 · Braiking Boss departs with robots while Casshern and Dio clash, leading to Leda’s confrontation with Luna.
- Ep. 24 · Casshern confronts Luna after Lyuze and Ohji die from ruin effects