On the other hand, the second song “Itsuka Kumo ga Haretanara” was written/composed by kz(livetune), TAKU INOUE served as the arranger.
The single’s first song “Heartbeat City” was written/composed by TAKU INOUE, known for his works for The [email protected] franchise, and was arranged by kz(livetune).
For each of them, this is the first time that they have provided a song for Uchida.