Shimauma

"I hadn’t known in this world of slaves and cattle... there was another world beneath that..." It all started with the arrival of an email. Attached were photos of a friend's disfigured face and a pair of extracted ribs. What started as a simple honey trap to make some quick cash turns into a nightmare when Tatsuo accidentally ensnares a yakuza. Now, as his life plummets into chaos, a mysterious entity known as "Zebra" emerges. But who—or what—is this Zebra!?