Needless 0Needless Zero; ニードレスゼロ

Gouken: Haven't figured out the amount of years this is apart from the original Needless. Cain is a descendant of a Needless, little is known of origin but his father was exterminated for being a Needless. Later Cain finds out he is also a Needless and needs to hide this fact or he will be exterminated.