Rascal Does Not Dream of Bunny Girl-senpai, Vol. 1 (light novel)

Bunny girls do not live in libraries. This is simply common sense. And yet, that's exactly where Sakuta runs into one. Wanting to find out more about the mystery surrounding this bunny girl and maybe get a little closer to her in the process, Sakuta launches an investigation to figure out what's causing her to be invisible to everyone around them.