The more I think about this opening the weirder it is. Isekais usually at least hint at a reason the character wants out of their current life or a reason the other world needs them, or both, right away. And there's a book but the updates go to her phone? Why have the book? Did the book do this? And for some reason getting kidnapped along with her apartment is more disturbing than getting tagged by truck-kun. No summoning circle, no magic effects, no discontinuity at all that might give some sense of import. Like the universe doesn't seem to care that she's here despite isekaiing her. Just all around weirdly structured.
Anyway, relax, have fun, you're trapped here forever.