A professional artist group/company founded and led by illustrator 小泉 和明 (Koizumi Kazuaki).
The main members are:
The other artists/staffs are:
https://www.pixiv.net/users/7321033
https://www.pixiv.net/stacc/kkoizumi_pro
https://bh4y13ty.fanbox.cc
http://www.amazon.co.jp/小泉-和明/e/B004L3KM0K/
http://www.dlsite.com/ecchi-eng/circle/profile/=/maker_id/RG03920.html
http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG03920.html
http://b.dlsite.net/RG03920/
http://doujinshi.mugimugi.org/browse/author/95173/
