Riku feels that there is no use in fighting Mikazuchi right now, so he and Souma head back to Tenjinchou on a bus. The ride home gets disrupted by a giant spider Youkai known as Tsuchigumo. Riku, Souma, and their Shikigami manage to destroy the Tsuchigumo and continue their ride home. But the ride gets disrupted again by a large Youkai. This time, however, Momo and Rina join the fight and summon their Shikigami, Houjou no Nene and Iyashibi no Hiyoshino. Huh?!