it's just trash.... ridiculously written, disgusting plot conveniences, bad and inconsistent character design, unanswered questions and lots of power disparity and world-shattering power-scalling issues, and some idiotic waifus to make some losers briefly forget they will most likely die a bunch of miserable virgins... good animation and soundtrack aren't everything, weebs!

don't you weebs think it's weird only the relevant characters happen to have colored hair!? and back stories worth listening to!? imbenciles writing mangas like Demon Slayer should learn a thing or two about character design from the likes of Hunter x Hunter and FullMetal Alchemist authors! whoever is the author of Demon Slayer, he is a lucky man for getting so much success with such a childish eye for design!

demon-slayer finds out magic hidden mansion of a good willed demon in his first day of work in the capital, when the greatest demon-slayers have failed to find this same place working in the capital for DECADES!? or maybe the irony that exactly the three only special cadets were BY COINCIDENCE put together in a party, while every other demon-slayer cadet party is pathetic and dies by the hands of demons like water flows through rivers!? some sweet plot conveniences i just can't have it! the anime is filled with those! if they don't bug you, then enjoy whatever childish garbage fencies your tasteless preferences!

power-scalling and power-disparity between characters is already a known issue with shounen anime few manage to solve like Hunter x Hunter and Boku no Hero Academia or FullMetal Alchemist, i hate Dragon Ball for that fact, and i grew up with it, despite not being a nostalgic person, i should at least like Dragon Ball... Dragon Ball is enough, i don't need another "shatter the universe" or "only two or three persons in the world could defeat this guy" bullshits!

how do they even got to discover that "black metal" kills demons specifically when beheading them!? how do they even discovered those purple plants are poisonous to demons!? where did the demons came from!? why only Japan if it's happening in the 20th century right before the world wars!? how was that group of super demon-slayer with hyper-collored hair even put together!? how the f* do they even manage to keep all those absurd things a secret from societies, and why!? why no other army in the world have discovered those revolutionary "breaths styles" that makes a man capable of cutting a giant boulder in two perfect halfs with a fragile katana without as much as scratching the blade!?

i can stay here all day telling why Demon Slayer didn't deserved all that Ufotable budget!

someone should teach Ufotable a better method of avaliating a manga's potential as anime! the only thing Ufotable's chain of command (that knows nothing of anime or manga apparently) could see when they decided to make a manga of Demon Slayer was the numbers it already had, and because of luck and their own marvelous animation and soundtrack, they must be now thinking the success resulted from the manga's already existing numbers/popularity, when it fact the anime's success is thanks to their ~~Unlimited Budget Works~~ great work! they could do it with Claymore, Spice and Wolf, Gantz, Btooom, and so so so so many forgotten others, mangas of all kinds that got cancelled after 12~24 episodes produced by a petty studio that never had the intention to give the animation a continuationn! Demon Slayer didn't deserved to be ahead of all those jewels!