Dont complain about how these chapters are fillers, if you actually take the time to think about it instead of making stupid accusations and insinuations, you’ll find out that these “filler” chapters are parts of when the MC is supposedly having his beliefs shaken about how the society is supposed to be run, the MC is an optimist but these realists side characters or villains are changing the way of how the MC thinks to effect future plots, most likely.