Set against the backdrop of the 1964 Tokyo Olympics and the rapid economic growth of Japan, "Hiyokko" follows Mineko Yatabe, a naive and hardworking girl born into a farming family in a rural village in Ibaraki Prefecture. When her father travels to Tokyo to work construction to pay off family debts and suddenly goes missing, Mineko decides to move to the capital herself. Along with her childhood friends, she finds employment at a western-style restaurant in Akasaka. As Mineko navigates the trials of city life, she encounters a diverse cast of colorful characters living in the same boarding house and working in the neighborhood. Through heartbreak, hard work, and newfound friendships, Mineko blossoms from an insecure country girl into a resilient young woman, learning about love, family, and the true meaning of independence.