The Ainsworth family's goal is to save the world from evil, but their success depends on the great sacrifice Magical Girl Miyu makes for them. Her brother Shirou, however, is not willing to let the family have his sister without a fight. That’s why he doggedly searches for a way to save not only the world but also Miyu...
The original novel and manga adaptation focus on letters sent from deceased dogs to their former owners. The anime adaptation stars P-chan, a dog whose owner abandoned him.
