Nontan and friends gather to perform a collection of beloved sing-along songs that span cultures and generations. Seven musical numbers bring together international classics and cherished Japanese nursery rhymes, each one acted out by the cast. The lineup includes "Close Hands, Open Hands" (Musunde Hiraite) and "Ten Little Indians." This OVA works best for young viewers who enjoy singing along. There's no plot to follow, just familiar tunes set to animation.