@Z3DT only the source material (the light novel) has a satisfying conclusion (or was supposed to have). but then they went and published a 13th volume earlier this year to everyone's surprise.
Ill have to read the ln then, but at the very least they didnt perform necromancy on the dead horse and drag this series out another 60+ volumes, everyone can appreciate an ending.
CCLaw Translations translated the whole Light Novel from 1-13. It is very different from the anime and Manga from my quick skims. Please start from 5e beginning to avoid confusion with Manga only and Light Novel only events. I recommend people check this out and read this if you are invested in the manga.