After receiving Luna's help in creating the Haouken Xross Saber, Touma has destroyed Isaac's books and restored sections of the city previously thought to have been gone forever. However, Isaac continues to further his plans, leading to the possibility that he wanted Touma to create the new Seiken. Meanwhile, despite fighting Isaac alongside the Northern Base swordsmen, the Shindais, Ren, and Kento decide to forge their own paths independently of them.