S1, E4: Ringo and Leila visit Natsuki’s house and run into Natsuki’s grandfather and grandmother. Apparently they both have to leave on sudden business. Natsuki’s grandmother tells her that a master of dance will come by to pick up some fabric. Natsuki is the daughter of a dry goods merchant, and her parents are working abroad. That’s why Natsuki is living with her grandparents. While Natsuki is telling this story, someone calls at the front door. When Natsuki rushes to the front door, the master of dance, Kobayashi Sachie, is waiting there. Even though Natsuki properly greets her, she is met with a “Hah!” and a lesson in manners!