As of now, September 7, 2021, MyAnimeList has about 30 Irodorimidori titles in its database. Of all those entries, this, without doubt, is my absolute favorite so far.
Nagi Kobotoke is, in my opinion, the best member of the band, of course not only because of her appearance and personality, but most especially because of her voice. The gap between her stature and her somewhat deep-ish soprano voice really suits her. Sakura Kaoru, Nagi's voice actress, deserves more recognition. Her singing voice is simply divine. Of course, this also applies to this song as well.
Analyzing the lyrics, I really found the message really appealing: wondering about what the future will be is truly exciting yet at the same time, anxiety-inducing. Nevertheless, this song, alongside the piano that plays in the background, truly is an amazing piece of music.