Sakurako-san no Ashimoto ni wa Shitai ga Umatteiru S01E07 - The Entrusted Bones, Part 1

With Sakurako unexpectedly showing up at his school festival, Shoutarou is in high spirits. After they're found by Isozaki in the science classroom, they're asked to help organize some materials left by Isozaki's predecessor. Sakurako's elated over the collection of bones, but Shoutarou learns that she once turned her own pet cat into a specimen...