Another person in No.6 has suddenly aged and died, this time a woman who worked at the Twilight House that Safu's grandmother is staying in. Shion hears about this from Rikiga and races to the theater where Nezumi is performing to inform him of the news. But during the play, Nezumi has a vision of a strange wind and song and he faints on stage. Meanwhile, in an art museum in No.5, Safu is looking at a work which displays three wasps when she, like Nezumi, is visited by a strange wind and song, and she also faints. When Safu wakes up, she is told she must immediately return to No.6 because her grandmother has died.