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

When the missing Zero Kiryuu returns to Cross Academy, Yuuki Cross is relieved to see him safe, but finds that Zero has changed in more ways than one. As a result of choices he made, Zero is plagued by visions, and he seeks to uncover the reason behind them—unaware that the answers may be much closer than he thinks. Soon Yuuki also begins to be tormented by ghastly hallucinations, and she seeks an explanation about her shrouded past from the only one who can provide clarity: Pureblood vampire Kaname Kuran, who is closest to her heart. But what will happen when the truth is finally revealed?

VAZZY and ROCK DOWN are the two units that make up Tsukino Talent Production's all-male VAZZROCK group. Led by Takaaki Mamiya and Shou Onoda respectively, both units announce via a round-table livestream that they are working hard to prepare for the upcoming VAZZROCK Live Flawless event. From taking extra dancing and singing lessons to starring in a TV period drama, these 12 idols must give it their all as they work toward a spectacular show that will impress their fans.

The cheerful Yuuki Cross and the gruff Zero Kiryuu are members of the disciplinary committee at Cross Academy, which houses two very distinct classes: the Day Class and the Night Class. Their job consists of upholding order between the classes when they switch out. While that may not seem like an especially difficult task, the Day Class is unaware of the truth behind the Night Class—their utterly gorgeous students are vampires. Ten years ago, Yuuki was saved from a vampire attack by Kaname Kuran, a Pureblood vampire. Now, Kaname is the leader of the Night Class, and Yuuki's disciplinary committee position allows her to see him again, making her feelings for him grow complicated. Meanwhile, Zero bears a white-hot hatred of all vampires and believes they can never live in harmony with humans. But a secret from Zero's past soon threatens the fragile peace of all at the academy, and things may never be the same again.