At Tenryuji Temple in Kyoto, a deadly game begins, assembling warriors to fight to the death along the Tokaido highway. Amid the chaos, Shujiro Saga, a man in dire need of funds, rescues a young girl, Futaba Katsuki, who is clearly out of her depth. The two manage to make their way to Miya alive, but then Futaba is abducted by one of Shujiro's foster brothers, Sansuke! When Shujiro tracks Futaba down, he learns something that shocks him to the core…