Rei has sacrificed her existence in order to create the perfect heaven for all magical girls to finally live in harmony with one another, free from the strife of their past, free from their trauma.. Just pure freedom. However, when the Incubator 'Kyuubey' manages to get a grasp on this strange, new world, and start fashioning a new system in order to gather energy 'for the universe', what will the girls do in order to stop this maniacal species from undoing everything Rei gave up to create, like Madoka before her? Part 3/3 of the Rei Magica series.