Magical Girl Lyrical Nanoha: The Movie 2nd A's

Several months have elapsed since the Jewel Seed incident, and Nanoha Takamachi eagerly anticipates Fate Testarossa's return from her trial with the Administrative Bureau. Fate, having received conditional clemency for her involvement in averting the crisis, is granted permission to attend school alongside Nanoha. However, their reunion is abruptly interrupted by a sinister ambush orchestrated by a group of dark mages known as the Wolkenritter. Overwhelmed by their assailants' overwhelming power, Nanoha and Fate find themselves stripped of their mana by a menacing grimoire, rendering both Raising Heart and Bardiche inoperable. The Wolkenritter, summoned by the Book of Darkness to fulfill its malevolent agenda, are led by the young girl Hayate Yagami, who remains unaware of the tome's true nature. The quartet, fueled by the forcibly absorbed mana, is determined to complete the Book of Darkness, unleashing its devastating magic upon the world. Left drained and defenseless, Nanoha and Fate must desperately race against time to regain their strength and confront the Wolkenritter. Their mission is clear: to prevent the quartet from completing the Book of Darkness and avert the impending catastrophe that threatens to engulf the world.