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About : Pinoko is Black Jack's sidekick, a little girl constructed by him who is actually a Teratogenous Cystoma, a sort of tumor also known as a teratoma. As seen in Teratogenous Cystoma, she was a rare type of Siamese twin, living in one of Black Jack's patients' bodies for eighteen years until Black Jack extracted her and gave her a real body, a plastic exo-skeleton. After being rejected by her twin sister, she started to live with him in his house. She always helps the doctor by doing house-chores a...