Hell's Paradise: Jigokuraku manga volume 12 features story and art by Yuji Kaku.

As the powerful ninja Shija flips between wanting to kill and wanting to be Gabimaru, the rest of the survivors fight for their lives! Safety is within reach, and all they need to do is overcome one final obstacle and secure their escape. But when the true purpose of the experiments performed on the island is revealed, everything descends into utter chaos.