Sexadoll

(from ebookjapan):
One day, a large package arrives for the unsuccessful eromangaka Tamae Tamagoro. He opens it without knowing what to expect, and finds a beautiful, naked woman inside. She calls him "master" and adores him, but she is a "sex doll" or "sex android" for him!　Who sent her to him and for what purpose?　There was a shocking background to this story. The life of Mimame and the "doll," who is working hard on his main job as a manga artist at a cheap boarding house, is involved in one incident after another and ......?