Mahou Shoujo Lyrical Nanoha: Detonation

The story continues directly from Reflection. As the conflict continues to escalate, Nanoha and her allies soon found out the troubled history between Iris and Yuri, which is related to the tragedy of Eltoria's "Planet Reclamation Committee". (Source: Nanoha Wiki)Set four years after StrikerS, Nanoha finally has time to get off her feet. Now explore the Nanoha world in Vivio Takamichi's shoes and her device, Sacred Heart.