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…