Mysteriously disappearing children. Rumors of evil spirits in Yoshiwara. A strange voice calling out to Miyamoto Iori. A suddenly attacking bird monster. In the midst of all these strange incidents, Yui Shousetsu appears in the form of a child and declares that if nothing is done, Edo will be destroyed. With the Spirit Font in turmoil, aspirants of the Waxing Moon join together to face a new anomaly. Among them is a newly arrived Servant, an unrivaled spear-wielder, Rogue Rider Zhao Yun. “Feel the sting of Zhao Zilong's spear!”