Fictional war novel series written by Shima Hajime and published by KK-bestsellers. Illustrated by Hirai Hisashi, Nakamura Akira, Tomizawa Kazuo and Washio Naohiro. The sequels, 'Joshikousei=Yamamoto Isoroku Reloaded' have been published by Ikaros publications LTD. A high school student Takayama Itsune took part in the WWII-themed MMO virtual reality game as the avatar of Yamamoto Isoroku.