: Frieren informs the demon that his "killing magic" is now considered a basic spell for novice mages. Frieren and Fern then use the modernized version of his own spell to destroy him. Core Themes

: Frieren explains to Fern that in the decades since Qual was sealed, human mages studied his spell. They eventually "standardized" it, incorporating its principles into humanity’s own offensive and defensive magic systems.

: Frieren breaks the seal herself to finish the job. When Qual awakens and immediately fires his "ultimate" Zoltraak, he is stunned to find that Fern—a mere human child—effortlessly blocks it with a modern, standard defensive barrier.