City Series - Baka-Tsuki The City Series(都市シリーズ) is a light novel series written by Kawakami Minoru (川上 稔) It had 15 volumes published from 1997-2005 by Dengeki Bunko It was Kawakami's debut series and it takes place in the final era of Kawakami's light novels, which include Kyoukai Senjou no Horizon and Owari no Chronicle