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.