main character relies on seals too much and while that's okay he didnt revolutionize sealing from an intent based art to something logic based like programming. and while the world progressed in their understanding of what chakra is. its still shallow and lacks depth and based too much on talent. and some of his wives were unnecessary and became redundant and the grand skim of things. The main character also barely scratched his potential but overall its a great story if a bit rushed. if there is a next book please have him suffer some set back to bring some urgency back into him to insure he acknowledges the importance of personal power