The story gets a lot better once the author stops forcing interactions between the MC and the cast of annoying characters they created. The last four hours of the book, the author loaded the MC up on a rocket to the sun for power levels. Went from OP to god-tier. There is a satisfying conclusion but it is swiftly tied up seems like the author realized this one wasn’t going to be a 20 volume money maker to drag out.
Pro: The story actually ends in a satisfactory way and doesn’t just end on a cliff hanger. I really dislike getting 3-4 books deep in a series and realize that author moved on to other series and never intends to finish it.