The story starts with a group of robots who screams of Luna and that meeting her will bring salvation. Casshern, Friender and a following Lyuze walk the same path as the raving robots in search of Luna. It is then when it rained, Ringo comes in playing chasing after the three. Fearing the rain may hasten the ruination for Ringo, they searched for a shelter and dries her off. There in the shelter, a heavy coated character barges in too searching shelter. It is revealed the character is Braiking Boss, the one who ordered the assassination of Luna and that Ohji is the one who built Casshern, Dio and Reda supposedly to be the perfect beings but ended up as being just killing machines.
Kyashan, Friender e Lyuze, seguendo le tracce che potrebbero portare a Luna, si ritrovano in una caverna dove Kyashan ritrova il suo vecchio capo, Bryking Boss.
生きていたルナが、救いを求める者達の滅びを止めている。キャシャーンは真相を確かめるために、ルナがいるという街を目指す。無言で歩き続けるキャシャーンと、その後を複雑な思いで付いていくリューズ。そして旅の途中にそんな二人の姿を見つけたリンゴとオージ。そして雨の中、彼らは山中のトンネルに身を寄せるが…。
