iriyama_tonatsu
Pixel art artist.
Japanese name: 入山 となつ (Iriyama Tonatsu)
The other names: "t.iriyama" or ドットお姉さん (Dot Onee-san)
See also
* Twitter account: http://twitter.com/tonatsu_iriyama
* Niconico account: http://www.nicovideo.jp/user/54996743
* Niconico community: http://com.nicovideo.jp/community/co3138880