Wow, now if that isn't an obscure character I don't know who is. I can't even remember her full name, only that her given name is Otoko, so she goes by Neko instead. I think it was Neko, anyway.
The only Otoko doujin that exists, lads, and one of the best Taiga doujins. If only it were translated, after all these years... maybe once I get a job I'll commission it... but that just means it'll never happen.