第 10 集: Isozaki 報告失蹤學生 Hitoe，最終骨頭收集行動因此中止。

10

The year's final bone gathering expedition is cut short when Isozaki informs Sakurako and Shoutarou that one of his former students, Hitoe, has gone missing. In the past, Hitoe's friend, Futaba, had similarly gone missing on Isozaki's watch as their homeroom teacher... (Source: Crunchyroll)