Magical Girl Lyrical Nanoha: Detonation

Kyrie Florian desperately tries to save her father and her dying homeworld, Eltria, but her childhood friend Iris betrays her. Despite gathering power from Nanoha Takamachi and Earth’s other defenders, Kyrie cannot use it to rescue her father. Abandoning Kyrie in despair, Iris takes what she needs to pursue vengeance against Yuri Eberwein, a dormant but immensely powerful being on Earth. Left to deal with the fallout, Nanoha and her allies must face Iris to unravel the truth and prevent her escalating feud with Yuri. Yet as the battles rage, an even greater danger lurks unseen. Through it all, Nanoha stays resolute, never wavering in her determination to aid those in need with her magic.