"Riten-Kyo", located on a lone island near the coastline of Edo, is now a lawless zone where underground conspiracies are forming. Seishirou Kuki, a young government warrior, quietly entered the island to conduct and investigation. There, he finds the unforgettable enemy that killed his father. Here, he will also find the surprise of his life.

"Riten-Kyo", located on a lone island near the coastline of Edo, is now a lawless zone where underground conspiracies are forming. Seishirou Kuki, a young government warrior, quietly entered the island to conduct and investigation. There, he finds the unforgettable enemy that killed his father. Here, he will also find the surprise of his life.