About the book: year / End of September. The National High School Thesis Competition is approaching. After receiving a request for help in capturing Zhou Gunqin from Yotsuba Maya, the head of the Yotsuba house, the Shiba siblings travel to Kyoto where they visit the Kudo house. There, Tatsuya meets a young wizard who can compete with Miyuki in beauty - Kudo Minoru. Together with him they go on a search, but do not achieve their goal. And then news reaches Tatsuya about the death of Nakura, the bodyguard of the Saegusa family. To avenge Nakura, who fell near the Katsuragawa River in Kyoto, Mayumi joins the search for Chou. Tatsuya finally finds Zhou's lair and contacts his old rival. "Crimson Prince" Ichijo Masaki and "Yotsuba's Ultimate Weapon" Shiba Tatsuya team up! End of the "Unrest in the Ancient Capital" arc! Translation: RuRa-team group