Doujin Circles: Houkago Paradise (放課後パラダイス), Dragon Kitchen (ドラゴンキッチン), Daikyuu Shougakkou (第9小学校)
The pen name came from the professional wrestling submission hold サソリ固め (literally "scorpion hold;" also known as "sharpshooter").
Gatame Sasori
さそりがため