Uchida Maaya, Saito Souma – Kokoro no Kagi (Astro Note ED)
Artist / 歌手: Gotokuji Mira (Uchida Maaya), Miyasaka Takumi (Saito Souma) / 豪徳寺ミラ(内田真礼)、宮坂拓己(斉藤壮馬)
Title / 曲名: Kokoro no Kagi / ココロのカギ / Ключ к сердцу / Key to the Heart
Anime «Astro Note» ending theme
