Magical Girl Lyrical Nanoha EXCEEDS Gun Blaze Vengeance — Episode 7

Thirty years ago, the world was nearly destroyed by the sudden appearance of unknown "invasive alien species." Humans and these “invasive species” continue to vie for living space, and while humanity’s safety is currently barely secured, the world could be destroyed at any moment. Living in fear of death and destruction, people go about their daily lives as if trying to avert their eyes from danger and disaster.