Valkyries—legendary female warriors from the land of gods, Asgard—are sent by Odin to protect Earth against the growing threat of demons. To overcome these threats, nine valkyries under the guise of the Saotome sisters will have to level up by performing a variety of romantic acts with their official lover, Einherjar. Meanwhile, the socially anxious Takuma Akutsu learns that Odin has chosen him as the valkyries' lover. Despite his utter horror, however, he agrees to let the sisters stay in his big yet empty house to help them in their war against demons. With nine beautiful women sharing his roof, will Takuma manage to prevail over his fear of society and become someone worthy of saving the world?

Vandread The First Stage (season one) was immediately followed up by this OVA. This OVA, also known as Vandread Taidouhen Stage (The Movement Stage) was a recap of the first 13 episodes with additional footage. So, Vandread Taidouhen is not really a bridge between Vandread The First Stage and Vandread The Second Stage (season two). It was made to bring new viewers up to date as to what happened during the first season (Source: AniDB)

Vandread Gekitouhen (Vandread Turbulence), similiar to Vandread Taidouhen, is an OVA summary of Vandread the Second Stage plus several extra scenes (Source: AniDB)

In Vandread, men are from Mars and women are from Venus! Well, not quite. Technology has allowed mankind to colonize the entire Milky Way galaxy, and in one star system, the men and women live on two different planets, Taraak and Mejere. A bitter and very literal gender war rages, to the point where they don't even see each other as the sames species anymore! Hibiki Tokai, a male third-class laborer from Taraak, ends up stuck on a battleship after a botched attempt at stealing a robot. When female pirates capture the Taraakian Vanguard, things don't look like they could get any worse for Hibiki. Unfortunately, they do; when the male crew of the Vanguard fire on their captured vessel out of desperation, they created a giant wormhole, which sucks the Vanguard and the Mejeran pirate's ships into itself! Now, stuck far away from their home planets, these men and women must learn to work together if they ever wish to make it back home.