Hoshi wo Ou Kodomo
Kumo no Mukou, Yakusoku no Basho
Gachiakuta
Re:Zero kara Hajimeru Isekai Seikatsu 3rd Season
Love Live! Nijigasaki Gakuen School Idol Doukoukai: Kanketsu-hen
Isekai Quartet 3
Fall 1977
When a little girl who loves music sneaks aboard a balloon, she soon finds herself far from home. She meets other children who also love music and agree to help her find her way back home. (Source: AniDB)