Set in the downtown area of Tokyo in the early Showa 30s, this moving anime depicts the bond between a female teacher who strives to pass down nursery rhymes and the children who grow through choir singing. In the spring of 1956, a teacher named Rieko Sakamoto arrives at a primary school in Fukagawa, Kiba. Driven by the last wish of her brother who died in the war, she holds a strong passion for passing down nursery rhymes to children. Under her guidance, the children aim to win the choir competition held at the end of the year and dedicate themselves to practice, but...