One year before a certain useless goddess and NEET extraordinaire hit the scene, Megumin, the "Greatest Genius of the Crimson Magic Clan," is hard at work. Ever since a life-changing encounter in her youth, the young wizard has dedicated her every waking moment to the pursuit of the ultimate offensive magic: Explosion magic. Well, every moment not spent hustling food ...

The proudly privileged top two students of an elite school each makes it their mission to be the first to extract a confession of love from the other.