Fuyashi Tou  

東冨耶子, 東冨邪子, 東富耶子

Tou fuyashi, also known as 東富耶子 or 東冨耶子, is a pseudonym used by the staff at shaft. this name can be rearranged to form "shiyafu tou" (しやふとう), which spells out "shaft" (しゃふと).