Artist. Formerly tagged as saktowa03.
Japanese name: 西ノ宮 サク (reading is given as Nishinomiya Saku)
The other names: サク, サク*, 朔太 or 西
Site name: 490.
https://www.pixiv.net/users/1529117
https://www.pixiv.net/stacc/saknoa39
https://twitter.com/saknoa03
https://twitter.com/intent/user?user_id=134938073
https://seiga.nicovideo.jp/user/illust/24385412
https://www.nicovideo.jp/user/24385412
https://sketch.pixiv.net/@saknoa39
https://ask.fm/saktowa03
https://www.youtube.com/user/nisinomiyasak
http://plus.google.com/109243294747801876989/posts
http://twpf.jp/saktowa03
https://www.pixiv.net/stacc/saktowa03
https://twitter.com/saktowa03
http://nisinomiyasak.blog.fc2.com
http://nisisak490.blog.fc2.com
http://theinterviews.jp/saktowa03
http://p.twipple.jp/user/saktowa03
http://twitpic.com/photos/saktowa03