Gleipnir. 9

Dark, disturbing, and sexy, this sci-fi action manga that inspired the new anime stars a dominating teenage girl searching for a sister who became a monster, and a submissive boy with the strange power to turn into a ragged but powerful beast, with a zipper down his back and a compartment on the inside just big enough to hold a human body. MEMORIES REVEALED   Honoka has been made into a brutal monster-a void that threatens to consume everything. Yoshioka and Shuichi, determined to stop this creature and recover the latter's lost memories, decide to fuse once more. Their efforts yield new revelations about Shuichi's time with Elena, including their battle to bring down Kaito and Honoka. The battle over the mysterious, alien coins enters its final act!