not gonna lie like the concept but the narration was still bad.
the background is solid with many correlations and abilities seem plausible.
the system was not important and can't be called the system it might as well be called the library and that it, there is no condition nor it mentions again after 1 or 2 chapters at this point it was nothing but a lazy plot device.
the interaction is bad, not gonna lie, rather than stories it feel more like draft or timeline map. the point is he appear out of nowhere in the point of interest and open his mouth and everyone think is normal and even corporate than a second in conversation, believe in everything he said without question while Shinji just copy paste answer from type moon wiki in his dialogue. there no struggle at all, he basically build stuff out off nothing without clear explanation.
it was face-pace stories so fast that my brain couldn't follow properly, it might be because the author has a hard time to hold back and build up stories and jump in crucial or exciting moments at the same time but make the interaction feel forced and other characters having moment that doesn't make sense by how originally their personality supposed to be.
