Senji's origin story finally answers why a man who weaponizes his own body chooses to save people instead of destroy them. The OVA doesn't just fill gaps from the manga, it reframes who Ganta's future rival actually is, turning him from mystery into tragedy. One episode, zero wasted moments, and suddenly the main series hits different on rewatch.
Two years after a catastrophic tsunami ravaged Japan, former police officer Kiyomasa Senji hunts criminals through devastated streets, wielding the supernatural Branch of Sin powers flowing through his veins. His mission is brutal and uncompromising: make the world safe by any means necessary. When he intercepts a gang called Goreless Peace in the middle of kidnapping a young boy named Izuru Tsukiyoshi, Senji's intervention sparks a dangerous escalation. What begins as a rescue quickly spirals into something far more volatile, revealing the depths of Senji's willingness to cross moral lines for justice. This OVA stands as a crucial window into Senji's violent past, showing how a man shaped by tragedy becomes the ruthless figure who will later dominate Deadman Wonderland. The action is relentless and the stakes are personal, painting a portrait of someone justified in his own mind but increasingly untethered from conventional morality. For viewers invested in Senji's character, this short piece provides essential context for understanding his descent.