So is the spider one. The light novel has been really good and the manga doesn't focus on the other characters so much as just the main character and her story.
I haven't finished either one, but I have been loving it so far.
Spider is one of my all time favorites. I loved the LN, the world building was fantastic. The way the author laid out the mysteries of the world and the dynamics was perfection. Also, it’s a isekai that forces its characters to actually deal with living in another world. It’s not a throwaway plot point that explains why they’re so much better, smarter, ect than the locals.
Yeah I hate the current trend of everything being an isekai, but I like when the story does it well. Log Horizon was another one I enjoyed. The main characters try to return home, but they're also learning about the world they're in and trying to adapt to its rules and ways of doing things instead of just steamrolling their way through.
I gave it 3 episodes but it just didn't do it for me. I liked the first episode but after that it got boring for me real fast. Buuuut I like that it exists, if only because it's cool to isekai everything.