Gleipnir 10

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. ALL OR NOTHING Desperate to revive Honoka after a terrible mistake, Kaito sought power over life and death. What he managed to bring back was not the same gentle-hearted girl who died, however, but a hollow, monstrous thing bent on slowly erasing the world. Having finally recovered his lost memories, Shuichi now understands his place in everything--and how he must stop Kaito at any cost. But to do so, he and Claire will have to achieve something they thought impossible...