Artist. Don't confuse him with The Smashing Pumpkins.
Japanese name: スマパン (Sumapan)
Site name: がれーじいんく
https://www.pixiv.net/users/282950
https://www.pixiv.net/stacc/blackdevil
https://twitter.com/sumapan77
https://twitter.com/intent/user?user_id=156627189
https://seiga.nicovideo.jp/manga/list?user_id=613232
https://seiga.nicovideo.jp/user/illust/613232
https://www.nicovideo.jp/user/613232
https://www.tinami.com/creator/profile/25741
http://sumapan7.blog.fc2.com
http://twitpic.com/photos/sumapan77
