Demon Slayer is one of the most popular anime of the last couple of years, and one need only look at its stellar animation to realize why this is the case. Ufotable has proven time and time again that their animation work is second to none, with Demon Slayer setting the bar for what is possible in the realm of animation. The show has made it quite clear time and time again that the powerful Hashira introduced near the tail-end of the first season will play a huge role in saving humanity from the threat of demons. With the advent of the Demon Slayer Mark, it's clear that these Hashira will finally be able to bridge the power gap and fight on equal ground against the Upper Rank Demon Moons who've made their lives a living hell time and time again.