Somewhere in Tokyo, Osamu Shibata and his wife Nobuyo live in poverty. While Osamu receives occasional employment and Nobuyo has a low-paying job, the family relies in large part on the grandmother's pension. As he is shoplifting for groceries with his son, Shota, they discover Yuri, a homeless girl. Osamu takes her home, where the family observes evidence of abuse. Despite their strained finances, they informally adopt her.