In the breakout fantasy anime series, Frieren: Beyond Journey's End, Frieren's vast knowledge and unsurpassed magical ability doesn't just happen overnight; it's the result of countless years of intense, obsessive training. An individual must be properly motivated in order to be so singularly focused on becoming powerful and Frieren is driven through her desire to kill all demons.
Source：https://www.cbr.com/frieren-beyond-journeys-end-welcome-twist-on-generic-villains/
