Reviewed by Kana
Who it's for, and whether it holds up.
Cultivation stories built around array formations rather than raw combat are rare, and "The Quest for Immortality" uses the premise to do something the genre doesn't often attempt: slow down. Mo Hua is reincarnated with mediocre talent but genuine aptitude for formations, and his goals are domestic before they're heroic. He wants to improve his family's situation. The early chapters establish that with enough warmth that the reader actually cares before the larger world starts pressing in.
Mo Hua is the novel's clearest strength. He's smart, he's careful, and he's willing to be ruthless when the situation calls for it, without losing the values that make him worth following. The author is also unusually interested in what economic inequality looks like in a cultivation world, where resources determine whether someone reaches the next stage at all. Mo Hua's detective-style investigations into crimes and conspiracies give that critique some texture, though they can slow things down for readers who want more conventional progression.
The formation system itself is consistently engaging to watch develop. Going from basic patterns to complex arrays takes time in the story, and the pacing of that progress feels earned rather than arbitrary.
Two caveats worth noting: the slow pace is a feature for some readers and a bug for others, and certain plot points involving the treatment of women have read as problematic to parts of the readership. I didn't interpret them as the story endorsing what it depicts, but it's fair to mention.
At 4.3, this is one of the better xianxia entries for readers who want craft and character alongside cultivation.