It is the year 2205. The Historical Revisionists have begun attacking the past. In order to prevent history from being altered, the Time Government has sent Saniwa to the past. Awakened by these Saniwa are the tsukumogami dwelling in swords, Touken Danshi. In order to protect history, they throw themselves into battle. The Saniwa gives their Touken Danshi the order to go on a new sortie. They assign a formation with Kashuu Kiyomitsu as the captain, Mikazuki Munechika, Kogitsunemaru, Ishikirimaru, Iwatooshi and Imanotsurugi, to go to the 5th year of the Bunji era, to the battlefield at Oushuu Hiraizumi: Atsukashiyama
