We'll All Meet at the Amagiya Hotel - S1.E20

At the end of the cultural festival, everyone is cleaning up the classroom, planning something to do for the night, when Nanako and Dojima arrive, who reveals he is going out of town and needs Yu to look after Nanako. Nanako says she can take care of herself, but Yukiko feels bad for her and invites her and Yu to come to her family's inn. The rest of the group, however, takes it as an open invitation for all of them to spend the night at the inn, but Yukiko does not stop them. When they arrive later, Yukiko, and Aika who has taken up a part time job at the end, welcomes them and takes them to their rooms.