Description: Ninjutsu school teacher Doi Hansuke goes missing after heading to a duel where he was challenged by Tasogaredoki Ninja Moroizumi Sonnamon.<BR><BR>Denzo Yamada and Tamatsu, a sixth-year student, hear about the situation and begin searching for the missing Doi.<BR><BR>Meanwhile, information comes in that there have been some disturbing movements at Dotake Castle, which has always been an enemy of the Ninjutsu Academy.