There is a Narayama Mountain in Shinano, and people in the nearby mountain villages have to enter Narayama Mountain when they are 70 years old. The 69-year-old A Ling (Sakamoto Sumiko) of the Tree Stump Family has three things that she can't let go of: one is that the 45-year-old eldest son Chen Ping (Ogata Ken) became a widower last year; the second is that the 20-year-old eldest grandson Jia Sha Ji (Kurasaki Qinger) always laughs at his strong teeth in front of the villagers; the third is that the 35-year-old second son Li Zhu (Zuo Dunping) has never had sex with a woman. On the annual sacrificial day, A Ling, who waited for the new daughter-in-law A Yu (Takeshiro Akira), was determined to knock off two front teeth on the stone mortar. During the rice harvesting season, Jia Sha Ji led Asong (Takata Junko) of the Rain House into the Tree Stump House, but Asong smuggled the food of the Tree Stump House to the Rain House. Chen Ping caught Asong, but did not make it public, but taught him a lesson in private. However, the Rain House family has been stealing for generations, which finally aroused public anger. The villagers not only raided the house of Ameya, but also buried the whole family alive, including Osomatsu. A Ling decided to go to Narayama in winter, but who should she ask for help with the matter of Risuke...