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.

The boyfriend of a Japanese high school girl comes to know about the older man his girl is also seeing. The older man pays for a sushi meal for the high school boy. The boy does not want to accept and wants to return the money so begins working part-time at a karaoke bar to earn income. The girlfriend asks him to come over to her place one day. They spend time together, he goes out to buy drinks and when he returns she has disappeared. There is blood in her room.

The high school boy and girl from Sundome 2 continue their sexless relationship in which she is sadistic and he is masochistic, but one day there is a rumour at school about her having a relationship with a different, and older, man. The boyfriend feels as if his girlfriend is hiding her relationship with the older man.

The ever complicated romantic life of a loyal lady dump truck driver.