Miss Shachiku and the Little Baby Ghost

S01E12 Episode 12

Since New Year's, Fushihara has been receiving daily letters from an anonymous source insisting they vacate the apartment. Initially dismissing it as a prank, Fushihara pays little attention. However, everything changes when a mysterious package arrives instead of the usual letter. Fushihara and the two little ghosts find themselves paralyzed with anticipation as something inside the box starts to move. What could possibly be emerging from it?