Bandoh won the 45th Japan Academy Film Prize for Outstanding Achievement in Music for his work on Belle.
Due to his father's work, he moved frequently in his childhood before settling in Saitama in fourth grade of elementary school.
In sixth grade of elementary school, his piano teacher encouraged him to become a composer.
[2] In February 2024, Bandoh announced that he had married poet Yumi Fuzuki [ja] in July 2023.
[3] Bandoh attended the affiliated music high school of Tokyo University of the Arts before studying composition there.