This is a 40-minute descent into a man's fractured memory, told in the violent shorthand of early 90s OVAs where plot logic doesn't matter as much as emotional devastation. Riki's reunion with his brother is the ghost in every frame, a wound that explains why he breaks people for a living. The gore isn't spectacle here, it's a visual language for trauma, for the kind of damage that doesn't heal between episodes.
A sequel to the Riki-Oh OVA Wall of Hell, this single action episode opens on Riki's childhood: the grim end his mother met, and how he was taken from his twin brother Nachi in the middle of a game of hide-and-seek. Nachi's call from that game has stayed with him ever since. Riki carries a six-pointed star on his hand, and Nachi bears a swastika on his, with no explanation of what the marks mean. In the present, Riki comes to Misaki, a town full of illegal nuclear power plants and ruled by God's Judgment, a fanatical religious military group. Taken captive, he is made to fight gladiator bouts in a huge arena. There he finds Nachi, whose special powers have earned him the title Savior, but his bitter brother turns their reunion sour almost at once. The violence is far gorier than in the first part.