Pinoko originally appeared in Tezuka’s highly popular Black Jack, a series about a genius surgeon. In the series, Pinoko existed as a cyst in her twin sister’s stomach for 18 years. After Black Jack detaches her from her twin, he gives her a body and lets her live with him as his assistant.

Pinoko may have the physique of a child, but she is an 18-year old girl at heart and considers herself to be Black Jack’s wife. She is Black Jack’s housekeeper and surgeon’s assistant.

Following the launch of the Black Jack animated series in 2004, Tezuka Productions received so many enquiries for Pinoko merchandise that they created a brand new set of artwork especially for Pinoko merchandise. Needless to say, the merchandise has been selling like hot cakes!