Prisoners of Twilight-Town

It's been five years since the death penalty was abolished in Japan. Instead, serious criminals are now incarcerated in a town called Twilight Town. Sendou Yuuma, who was sentenced to death despite protesting his innocence, is no exception and is sent to Twilight Town. The town is a lawless place where murder and rape are not crimes. Death row inmates kill each other freely. Will Yuuma be able to survive in this hellish Twilight Town!? The battle for survival begins for all death row inmates!!