My Maid is a Formless Entity
My Maid is a Formless Entity (うちのメイドは不定形, Uchi no Meido ha Futeikei) is a light novel series written by Tassou Shizukawa, concieved by Ryou Morise, drawn by Juu Ayakura.
Overview
Boy meets shapeless agglomeration of unspeakable origin, adds water, it grows into a maid
It's the only profitable series of PHP Shuppan's light novel line, which is not carried in most bookstores. The official website for UchiFutei implores you to order from Amazon.
sorry for crap quality illustrations ヾ(´∀｀*)ﾉ