Artist.
Japanese name: 外様 ゼイル (the artist uses this spelling: Tozama Zeill)
Site name: 遊 蝉 (u.zen or u-zen)
https://www.pixiv.net/users/320420
https://www.pixiv.net/stacc/faxy_999
https://twitter.com/zeill_tzm
https://twitter.com/intent/user?user_id=113496197
https://sketch.pixiv.net/@faxy_999
http://zeeeeeeill.blog.fc2.com
http://twitpic.com/photos/zeill_tzm