Sakurako-san no Ashimoto ni wa Shitai ga Umatteiru S01E08 - The Entrusted Bones, Part 2

Human bones were found among the specimens in the science room. However, there was no foul play involved. As Shoutarou investigates the circumstances behind their presence in the science room, he decides he needs to visit the former science teacher's sister, Koyuki...