It's his private char, and will properly never be released.Might be worth checking out a guy called D-Gear, I saw a few videos of his on and there is a male Rper I never saw before. He's on FC2 and Twitter but I think that might be his own character or one no ones spoken of.
Some dude uploaded the HD versions of his videos: https://ulmf.org/threads/sex-mugen-2-0-general-discussion-thread.6524/page-131#post-1027654
Search this thread for the remaining videos.