The story is one of the most interesting I've seen, how it creates its world building, how the abyss works, the monsters, the biomes of each layer... everything is fine, structure that you believe in that world and want to know every corner of it. abyss but afraid because you know that this world is cruel (the abyss is hell...) and the story that we follow with riko and her group is something that really interests you and you want to see how it continues in each episode.
the art of the manga is... amazing the quality, the details in general everything is just beautiful and even when those strong moments happen thanks to the art it really gives you that effect blow to destroy you...
In a few words, if they can endure the strong scenes and the things of the mangaka, it is a work that you will love and hate at the same time
