Kunoichi Ninpouden Inga Seiai Ougi

Rikimaru and Omitsu are Kagemawari agents, a secret force tasked with rooting out treason and corruption among the daimyo. While traveling undercover, they stop at a hot springs, where Omitsu attempts to seduce Rikimaru. However, her distraction proves fatal: they are ambushed by enemies.

Though they manage to defeat their attackers, Rikimaru is struck by poison darts. Now, only Omitsu can save him using a secret and erotic technique passed down by the kunoichi. As she struggles to keep him alive, the mission hangs in the balance.