masamu_(leonore69)
Artist.
Japanese name: マサム (Masamu)
See also
* Pixiv account: http://www.pixiv.net/member.php?id=1922283
* Niconico account: http://www.nicovideo.jp/user/19315038
* Niconico MyList (1): http://www.nicovideo.jp/mylist/23730404
* Niconico MyList (2): http://www.nicovideo.jp/mylist/23269997
* Niconico MyList (3): http://www.nicovideo.jp/mylist/38931604
* Twitter account: http://twitter.com/masamu3939