Mito, the woman known as the galaxy's most dangerous space pilot, also happens to be a three foot tall alien who looks strangely childlike and who has a dark secret - all she wants to be is a mother. She has a son, named Aoi, living on Earth who knows nothing about his mother's true occupation or physical form due to the 'mom suit' Mito has always worn while with him. However, all that changes when the Galactic Police chase Mito to Earth, destroying her 'mom suit' and in the process and forcing her to reveal her true self to Aoi. Before he has a chance to realize that his mother is really a very short alien, Aoi has joined his mother on a race across the galaxy in an adventure more bizarre than he could have ever imagined.