It's been two years since Nana married into a family of Sagawa-style Aida school of tea ceremony. After she got married, she learned the way of tea, and finally she was recognized as a full-fledged person and was allowed to take lessons with her Iemoto, Ginji Sagawa. On that day, she serves Ginji her tea, but she is so nervous that she accidentally breaks her heirloom teacup. Ginji, who can't get rid of her stomach bug, proposes her staying overnight as a condition to forgive Nana, who apologizes. "In that case," Ginji suddenly orders Nana to take off her kimono, saying, "Let's teach her the essence of the tea ceremony."
