After utilizing the power of crane games to protect Earth from certain destruction by asteroids, the Crane Game Girls successfully become the planet's most popular idol group. However, their success is bittersweet when their manager, Saya, disappears on the day of their fateful final mission. One day, an Earth Invasion Idol group known as Dark Cherry interrupts a live show and challenges the Crane Game Girls to a battle. To make matters worse, Saya has reappeared as Dark Cherry's manager! As the group prepares to face off against their new foes, they begin to unravel the secrets of Saya's betrayal and the reasons behind the sudden invasion from planet Dark Gorilla.

One day, Saya, an agent of the World Space Association, receives a sudden message that says a large number of asteroids are on a collision course with Earth, and it is her mission to stop them. Unfortunately, the only way to save the Earth is by having three people with extraordinary potential demonstrate a new skill on a crane game, which will create a beam of energy able to divert the asteroids. The only three people with enough potential are three high school girls—Asuka, Mirai, and Kyouko. In order to harness their energy, Saya tells them that she has scouted them as idols and has them work at an arcade where she can monitor them. She says to the girls that all successful idols are good at crane games, and that building their skills is their first step in idol training. As the girls learn new crane game techniques, they begin to doubt Saya's intentions but are nonetheless unaware that the fate of the Earth lies in their hands.

An OVA episode bundled with the 11th manga volume.

60 years ago, a strange case of insomnia struck the population, forcing them to stay awake for more than a full week. The victims, completely sleep deprived, all went mad. To cure this illness, a new medicine was produced, but the side effects turned the patients into vampires. Humanity went to war against this new species and triumphed, but some of the vampires managed to survive. Born from a Human and a Vampire, the main character Mi Liu, The Child of Hope, is to represent the new hope that will connect the two species. Ringleader of a bank robbery, Mi Liu is arrested and transferred to a special prison of the National Defense Agency that monitors Vampires. Trying to break free with Anji, Mi Liu is attacked by strange monsters and he finds out that the prison location corresponds to the birthplace of Vampires, the old capital Blue Town. Why are Vampires trapped in Blue Town? What are those strange monsters attacking them? Our heroes must fight to solve those mysteries. (Source: Emon via ANN)