Togame, a female samurai general, travels to the Fushou island to asks Shichika for help in collecting the 12 legendary swords.

Shichika and Togame are three months into their search for the 12 Deviant Swords and this time they have arrived at the Sanzu Shrine in order to retrieve the Tsurugi sword. However, in order to obtain it not only must Togame find the original Tsurugi from one thousand identical blades but Shichika must defeat it's master Meisai Tsuruga in a one-on-one duel. To make matters even worse Kuizame Maniwa is also after the Tsurugi sword and soon makes his way to the Shrine.

Hakuhei Sabi challenges Shichika to a duel for possession of the Hari Sword and the rest of Shikizaki Kiki's Blades. Meanwhile, the Maniwa Ninja's Insect Squad attempt to kidnap Nanami and use her as a hostage against her brother. However, the Insect Squad soon discover that although Shichika is the head of the No Sword School, Nanami is far superior to her brother in combat and it doesn't take her long to kill all three of the Ninja sent after her.

Having become annoyed with her brother's slow progress Nanami has decided to leave the island and collect the 'Deviant Swords' herself. However, her methods are far more ruthless than those of Shichika and Togame, and it isn't long before she acquires the Bita sword bringing the two sides into direct competition. As such the siblings are pitted against each other in combat but can the current head of the No Sword School really hope to defeat his vicious and gifted little sister; the 'true' heir to the title.

Togame and Shichika travel to the Shinou Issou School to take on its master, Zanki Kiguchi, for possession of Outou Nokogiri. Being a sword instructor, Zanki is bothered by Shichika's style and refuses to fight him until he receives training at swordsmanship. She offers to instruct him and the two begin a ten day training regimen, much to Togame's chagrin. Meanwhile, the Maniwa Corps are able to retrieve the most poisonous blade of all, Dokutou Mekki. Before they can leave with the sword, Emonzaemon arrives with the intention of assassinating Houou. Penguin and Houou flee while Oshidori stays behind, only to be gunned down with Entou Jyuu after putting on an impressive battle.

As Togame lays dying in Shichika's arms, she tells him that all of this was a part of her plan and that had she not died, she intended on killing him after he retrieved all twelve blades. Having manipulated everything, including her heart, into her plan, she says that her feelings were real and dies asking Shichika if it's ok for her to fall for him.