Artist, nicoLive user.
Japanese name: すみゅ (Sumyu)
The other names: すみ (Sumi) or "chinpansha"
https://www.pixiv.net/users/4917041
https://www.pixiv.net/stacc/chinpans
https://twitter.com/sumyuuuuu
https://twitter.com/intent/user?user_id=2243694943
https://seiga.nicovideo.jp/user/illust/2991989
http://com.nicovideo.jp/community/co170591
http://com.nicovideo.jp/community/co1365102
https://www.nicovideo.jp/user/2991989
https://sketch.pixiv.net/@chinpans
https://www.pixiv.net/stacc/dizzyxdezzy
http://co170591.blog.fc2.com