Katana Maidens: Tomoshibi

The Akabanetou Investigation Squad gathers information on okatanas that have been scattered. One of the members named Asakura Mihono spends her days carrying out missions and training with the rest of her squad. A few months after the End of the Year Great Disaster, a new Toji arrives to fill in Suzumoto Hana's place while she's recuperating. Meanwhile, Etou Kanami and Juujou Hiyori headed to Enoshima on Origami Yukari's orders and run into a humanoid aradama. They engage in battle with the aradama, but it manages to get away. The Tojis are ordered to investigate the humanoid aradama, so Mihono's squad also joins in on the investigation, but...

While spending some time with Mihono and the rest of the Akabanetou Investigation Squad, the humanoid aradama named Kohime begins to open up to humans. But after finding out that Tojis are supposed to cut down and exorcise aradamas, she closes off her heart once more. The fact that Tojis and aradamas are destined to fight troubles Kohime, and Mihono and the others worry about her. One day, after the squad receives orders to subjugate some aradamas, Kohime escapes from the Origami Family's facility and tries to find Mihono and the others and...