Yumi introduces her fiance Shigeru and his sister Kiyoko to her father-in-law, Tokujii, with whom she has lived for many years. Tokujii smiles as he finally hears about his daughter-in-law's marriage. Yumi feels relieved to see this, but then she notices that Tokujii is curious about what is under Kiyoko's skirt. Witnessing her father-in-law's attention for the first time, Yumi is overcome with indescribable emotions.