Artist.
Japanese name: 瀬戸海 そら (せとみそら, Setomi Sora)
Circle name: ヌルポインターワークス (NullPointer Works)
Site name: 空箱 (Empty Box)
https://www.pixiv.net/users/1217427
https://www.pixiv.net/stacc/setomisora
https://twitter.com/setomisora
https://twitter.com/intent/user?user_id=401445938
https://sketch.pixiv.net/@setomisora
https://www.tinami.com/creator/profile/1757
http://nullpointerworks.blog.fc2.com
http://setouchisea.blog.fc2.com
http://yanpiyo.hp.infoseek.co.jp
https://www.pixiv.net/stacc/setouchisea
