i looked up the LN and the reason it stopped at 3 volumes, basically where this manga ends at. According to the sources. it's because the author just felt like ending it. Didn't feel like going on with anymore writing of this. the reason the ending is rushed is because there was nothing more for the manga to pull information from. so we got hit in the end with a lot of loose ends. as for not being tagged correctly. It's not tagged Harem because it's not until the ending. If it was a harem from the start, it would of been tagged that. and since the story does not keep going, no need to put the tag there. again, if the story kept going, yes it would need the harem tag.
i looked up the LN and the reason it stopped at 3 volumes, basically where this manga ends at. According to the sources. it's because the author just felt like ending it. Didn't feel like going on with anymore writing of this. the reason the ending is rushed is because there was nothing more for the manga to pull information from. so we got hit in the end with a lot of loose ends. as for not being tagged correctly. It's not tagged Harem because it's not until the ending. If it was a harem from the start, it would of been tagged that. and since the story does not keep going, no need to put the tag there. again, if the story kept going, yes it would need the harem tag.