Bincho-tan
Letter From The Sky-bin (1x12)
:
It is New Years Eve and Chiku-tan and Chiku-rin are making mochi. Binchōtan has caught a cold and dreams of her grandmother. She feels lonely until Kunugi-tan, Ren-tan and Chiku-tan arrive to look after her. The next day, Aroe visits a shrine and her fortune tells her that something that with change her luck lies to the northwest, which is where she finds everyone else. Binchōtan writes a letter in the snow to her grandmother.