Two years after marrying into the prestigious Sasaki school of tea ceremony, Nana continues her training under the grand master, Sasaki Ginji. Finally recognized as a full disciple and granted permission for off-site practice, Nana nervously serves tea to Ginji on the fateful day—only to accidentally shatter a priceless heirloom tea bowl. Enraged, Ginji demands an apology and proposes an overnight training session as the price for forgiveness. Desperate to make amends, Nana agrees. But as soon as she consents, Ginji suddenly orders her to undress…