A commissioner, not an artist. Don't use this tag for works posted by this account. Instead tag it with second-party source and the actual artist.
OCs:
https://www.pixiv.net/users/74134
https://www.pixiv.net/stacc/souyaayanagi
https://twitter.com/yashiro_sousaku
https://twitter.com/intent/user?user_id=1037671011687133185
https://fantia.jp/8b952c1800
https://fantia.jp/fanclubs/519114
https://yashiro-sousaku.fanbox.cc
https://www.pixiv.net/fanbox/creator/74134
