For the new year holidays, Auntie Tomoda and her husband visit her sister who lives alone with her son Yuki.
Auntie and Yuki quickly connect as they both share a carefree personality. And as an unsatisfied woman, she is the one to actually initiate the teasing.
Yuki however surprises her back with unlimited stamina, much to her delight.
The movie is excellent. Maybe one of her best movies even.