Artist.
He passed away in September 2018. May he rest in peace.
Artist name: よこやまなおき
Circle name: Grace
https://www.pixiv.net/users/130152
https://www.pixiv.net/stacc/grace-n
https://twitter.com/gracenaoki
https://twitter.com/intent/user?user_id=96815791
https://sketch.pixiv.net/@grace-n
https://www.tinami.com/creator/profile/4675
http://gracenet.blog.fc2.com
http://blog.livedoor.jp/icsk_g/
http://www.amazon.co.jp/よこやま-なおき/e/B00M55A1YI/
http://www.amazon.co.jp/よこやま-なおき/e/B004LVXT48/
