Iroha City is a known, but peaceful city that some may even consider too peaceful and thus boring. However, Kagamine Rin doesn't think so and she always finds a way to make her everyday life exciting, while also spending time with her friends, the other Vocaloids. But one day, a strange phenomenon occurs which marks the end of their peaceful daily life, demanding a lot of personal growth and overcoming their fears as they embark in a quest to save the world.