It has been two months since the outbreak of a zombie infestation. In spite of the turmoil that surrounds them, three high school students in sailor suits continue with their normal routines. Maiko is new to school and dreams of becoming an idol. Although she faces numerous challenges, her bond with Momoka and Mutsumi grows stronger. One day, during their usual routine, they encounter a group of zombies. Suddenly, music starts playing on the radio, causing the zombies to stop their attack and dance along to it. This type of music protects humans from the zombies, but they are unable to locate its source. Now, Maiko, Momoka, and Mutsumi are at risk from the undead creatures that stalk them.