Artist.
Japanese name: 野乃原 如来 (Nonohara Nyorai)
Circle name: shachiku20002
The artist is also a member of Bunjutsu Fortissimo, a doujin circle led by fanfic writer Miura Sairasu. Sairasu often uploads the illustrations of other circle members to his sites/accounts with their permissions. The real artist credits are on his Pixiv commentaries.
Miura's accounts:
https://www.pixiv.net/users/37985
https://www.pixiv.net/stacc/shachiku20002
https://twitter.com/nonohara_nyorai
https://twitter.com/intent/user?user_id=2313130153
https://sketch.pixiv.net/@shachiku20002
http://c10061255.circle.ms/oc/CircleProfile.aspx
http://c10217300.circle.ms/oc/CircleProfile.aspx
https://www.pixiv.net/stacc/82828282
