Talentless Nana

In the year 20XX, Earth faces attacks from monsters known as the Enemies of Humanity. Schools bring together teenagers with extraordinary abilities to prepare for the threat, and these students become known as the Talented. Among them is Nana, an apparent outlier sent to one of the schools despite having no innate special ability. She sets out to defeat the Enemies of Humanity by relying on intelligence and manipulation rather than superpowers.