A missing artist. Creator of Akatsuki Makoto.
Had the same Pixiv username as Null (nyanpyoun) (and, both are obsessed with anal sex), but different Pixiv ID and nickname. Might have been the same person.
https://www.pixiv.net/users/90507
https://www.pixiv.net/stacc/nyanpyoun
http://mixi.jp/show_friend.pl?id=5811621
