Demon Slayer is one of the animes that are well-known in the world. It is written and illustrated by Koyoharu Gotouge. Its animator is ufotable and directed by Haruo Sotozaki.
A kind-hearted and teenage boy named Tanjiro is trying to avenge his family, who was killed by a man-eating demons, by entering the demon slayer corps and killing the leader of all the demons. His sister Nezuko was turned into a demon, but is still trying to protect humanity rather than killing and eating them. They meet strong demon slayers along the way that has the same goal as them.
The anime is still on season 2 and 1 movie, but the manga has already come to an end. It even outperformed non-anime titles as one of the most watched series on the streaming platform. The manga had sold over 150 million copies, including digital versions, as of February 2021, making it the eighth best-selling manga series of all time. The manga and its anime adaptation have both garnered positive reviews.
I can't say more about its animation since you can see it on the photos above. I am encouraging you to watch it because it is filled with emotions. And it can even be your comfort when you need it.
(Photos are taken from google)