Now, it's possible there are other cultivation stories that are worth reading, but I've tried dozens and given up on all of them but this one. Why?
Because the cultivation in this story clearly gets its power up from outside sources. It requires expensive materials and extensive knowledge, which requires leaving the house and actually having an adventure.
Do you know how many, Chinese especially, cultivation novels and graphic novels allow the character to conveniently level up by only looking into themselves? It's possibly the worst (most frustrating, least entertaining) way to power up a character that was ever thought of.
But, again, this story requires the characters to go and have an adventure and risk their lives in order to power up. And it's quite the adventure, too. The world building gets to be expansive and interesting.
The characters are solid, too. They often have personalities that are at least two dimensional, which, for an action adventure, more than works well. Some are even more developed than that.
The only real weakness is either translation-based or a result of poor terminology: you'll many times have "legends" being used for non-legend ranked people in backstories, so things get a little confusing at times.
A legend-ranked demon beast awoke to wisdom, becoming a demon lord. Then hundreds of legend ranked masters attack it, die, and anger it enough to kill off most of the continent's civilization. But, the MC says he should be able to kill the demon lord once he becomes a legend-rank. There is clearly a contradiction here if we assume the terminology used is correct.
Outside of that, I can't say I always like how the MC acts, but I can't say I don't like him overall.
Worth checking out, and the art impoves greatly over time.