An accident during tests of an anti-plasma artificial magnetic shield at Japan's Ground Self Defense Force East Fuji practice range sends the 3rd Special Experimental Company, under Colonel Matoba on a time-slip 460 years into the past, into 'the Age of civil War'. At the same time an imaginary-number anomaly thought to be caused by interference from the past begins eroding the present.

Yosuke Eguchi
as Yusuke Kashima

Kyoka Suzuki
as Rei Kanzaki

Katsuhisa Namase
as Akihiko Mori

Daisuke Shima
as Mikuni

Tetsuya Igawa
as Takanashi

Kazuki Tsujimoto
as Taniguchi

Hiroki Touchi
as Yamase

Shintaro Wada
as Arino

Takehiko Tsuno
as Nakanishi

Makoto Hashiba
as Igawa