Aokana EXTRA1 Vocal & Sound Collection

The official soundtrack to Aokana: Four Rhythms Across the Blue EXTRA 1! Features the theme song, One Small Step (Vocals: KOTOKO), and the ending theme, Happy Tomorrow (Vocals: Arisaka Mashiro), in addition to all 11 additional BGM tracks created for Aokana: Four Rhythms Across the Blue EXTRA 1.