Before anything, the marconii2002 was a great scanlator. Their translator notes were very detailed and nuanced, showing great care to preserve the original text in Japanese and explaining when this was not possible. Such explanations allowed me a better understanding of the story's lighter moments. Along with this, the explanations for the more complex things here, like Fermat's Theorem or black holes were a joy to read. They turned the story from one of mostly supernatural and magical elements to a sci-fi with a basis in reality. Also, it showed the passion the scanlator had when scanlating this. Their passion in the story moved me and made the reading experience more joyful. This scanlator was among the best I've seen and really deserves a shoutout, kudos to marconii2002!
Now back to the review. Great slice of life. Mostly laid back, but with plot progression every few chapters. Very well done. The story's logic began losing itself in the final arc, but it was very enjoyable regardless. Putting myself in the world was a total treat.
This series is compared to Girls Last Tour on here, but I disagree. That story had a central thesis, namely life should just be lived and enjoyed, without any meaning. Chito tried to find meaning by collecting books, but ultimately decided she didn't have to give herself some "duty" for her life to be enjoyable. This story didn't have that thesis, since Masahi and his group managed were rewarded for giving meaning to their life, namely trying to figure out the cause of the phantoms. The story doesn't seem to have a thesis, although I'd need to think more about this.
Regardless, this was a very good read, 8/10 and a personal favourite of mine.