Riki-Oh 2: Horobi no Ko, the sequel to the RIKI‑OH OVA Wall of Hell, expands on Riki’s past. Through flashbacks to his childhood, we learn of his mother’s tragic fate and the moment he was separated from his twin brother Nachi during a game of hide‑and‑seek, when Nachi’s plaintive cry of “Are you ready yet?” haunted Riki for years to come. Riki bears a six‑pointed star on his hand, while Nachi’s hand bears a swastika, an unexplained symbol that adds to their ominous connection. The story then places Riki in the town of Misaki, a place rife with illegal nuclear power plants and governed by the religious‑fanatic military organization known as “God’s Judgment.” Captured, Riki is forced to fight in gladiatorial matches...