Japanese artist.
Name: ぴえ谷397 (Pietani397, "Pietani Sakuna") or 397
Site name: 397号室
At some point between 2013 and May 2014, most of Pietani397's sites and profiles were deleted.
http://www.nicovideo.jp/mylist/33575410
http://www.nicovideo.jp/mylist/33712952
https://seiga.nicovideo.jp/user/illust/17323826
https://www.nicovideo.jp/user/17323826
https://tegaki.com/684522
http://twpf.jp/pietani397
https://www.pixiv.net/users/2070973
https://www.pixiv.net/users/4529360
https://www.pixiv.net/stacc/i-loved-yesteday
https://www.pixiv.net/stacc/yamabuki397
https://x.com/pietani397
https://x.com/yamabuki_sakuna
http://com.nicovideo.jp/community/co1712259
http://room397.blog.fc2.com
http://twitpic.com/photos/378gousitu
http://twitpic.com/photos/pietani397
