![Koyuki](http://image.tmdb.org/t/p/w92/jvdbMB3I8qfHdMTwF0nUuTE0DKS.jpg)
Tenshu is imprisoned and sentenced to death for murdering the men who raped his girlfriend. However, he manages to survive his execution and is presented with an option: face another execution attempt or subject himself to their bizarre and dangerous experiments.