While investigating a sound anomaly across the galaxy, Basara crash-lands on a snowy planet and receives an unfriendly welcome from the local residents. On the planet, he befriends Pedro, a four-year-old boy who watches the Galaxy Network and idolizes Fire Bomber. Basara also discovers that the sound he's searching for is generated by Emilia, a lone Meltrandi struggling to make music of her own.
(Source: Anime News Network)
— Description from AniList community (anilist.co).
