Mary, who lives in a certain town, is worried about balancing accounting work, cleaning duty, and family life. One day, as her dissatisfaction with the town grows day by day, she is asked by the president, Nakata, to participate in the Mama's Volleyball Tournament. Reluctantly, Mary can't refuse and heads to practice, which is held every Saturday, but for some reason, only a few of her middle-aged men are there. The middle-aged men look at Mary, who is confused.