Kodansha's graphic novel "Mardock Scramble" (2010 -) is based on a Japanese sci-fi novel series (2003 -) written by Tow Ubukata. Set in the futuristic Mardock City, the comic follows the story of Rune Balot, a lost girl who gets fatally wounded after being betrayed by a man named Shell Septinous, but is saved by an easygoing private investigator Dr. Easter and his serious sidekick Oeufcoque. And Oeufcoque is a shape-shifting, golden-colored "mouse" or an artificial being that can change into a weapon.
While Balot is given special powers (including her ability to "snark" or use any electronic devices around her as she wishes), she is asked by the doctor to testify in court against Shell, a suspected serial killer he and Oeufcoque have been chasing. But the first question Balot has to answer is whether she really wants to live ... and for what. Meanwhile, Shell sends out his bodyguard Dimsdale Boiled to track down the girl and Oeufcoque.
The comic keeps a good pace, with several action set-pieces. The story elements themselves are not particularly new, but they are so skillfully arranged that you will keep turning the pages. "Mardock Scramble" also deals with some serious topics including prostitution, but the overall tone of the graphic novel is not depressing, thanks to the fine artwork of Yoshitoki Oima.
The first volume of "Mardock Scramble" is only the beginning of Rune Balot's long journey. (Five volumes of the on-going comic have been published so far.) Her interesting relationship with Oeufcoque, who becomes a sort of guardian for her, is just started.
You may be interested in the three-part animated films "Mardock Scramble" (with the Balot's voice played by Megumi Hayashibara). The comic version has a little lighter tone and is less sexually explicit (and Balot looks slightly younger), but has its own appeal with the heroine's more colorful facial expressions.