Set during the Edo Period, "Sword of Desperation" tells the unforgettable story of swordsman Kanemi Sanzawmon. Three years ago, Kanemi Sanzawmon killed Renko, the mistress of the powerful daimyo Tabu Ukyou and a woman causing corruption. Unexpectedly, Kanemi Sanzawon received a lenient punishment and was able to return to his clan in only one year. After the death of his wife Mutsue, Kanemi Sanzawon lives with and takes care of Mutsue's niece Satoo. Kanemi is unaware of Satoo's secret affections for him, but she is able to change his outlook on life. Meanwhile, Kanemi Sanzawon's unique "bird-catching" sword fighting technique will be tested when he must battle Hayatonosho Obiya.