The plot is him researching or building his city, but it's not that interesting. Chakra in a different world is illogical, it would have been more reasonable to get better control or create purer profound energy by merging spiritual energy, natural energy, and soul energy, but fails to explain how these energies differ from ordinary profound energy. And why does he need hand seals to control his energy when he could simply focus on improving his profound arts and increase cultivation speed? He has chakra points, instead of special meridians or soul-based abilities such as soul force or body-switching that he could use to switch bodies and join a sect. He creates and uses Jutsu, sealing abilities, nature transformation, instead of profound arts, that is not realistic and interesting, explanations about experiments are missing or don't make much sense. He could get techniques from the imprisoned but doesn't, even if they are low-level cultivators they should have some secrets and information about the world, the information he might get is now shown. Beast taming, looking for talents, and resource mining are missing.
