The war between the Iga and Kouga ninja clans ended a decade ago, and the groups are now at peace, supposedly ending their long-standing animosity. The successors of the two clans, Hachirou Kouga and Hibiki Iga, appear to have everything they need for their love to blossom, but not everyone is pleased with the outcome of the ancient battle. Several rumors of the final clash between Gennosuke Kouga and Oboro Iga have circulated, causing Tadanaga Tokugawa, who the Kouga represented, to feel dissatisfied. As tensions between the two clans begin to escalate once again, the rising political climate poses a threat to the fate of the lovers, much like in previous generations.