September 2nd is Subaru Ichinose's birthday. The birthday song resounds through space; the applause goes on and on. But before the day is out, Subaru learns the bleakness of adulthood.
♪ Happy birthday dear Subaru... ♪
Happy Birthday Dear Subaru …
Feliz cumpleaños, querido Subaru…
Joyeux anniversaire, Subaru…