Aoba, who lives a pretty ordinary life, works at the junk shop "Mediocrity." The manager asks him to make a delivery one day, but he finds out that there's nothing at the address he was supposed to deliver it to. It was then that Aoba was consumed by light and he was within a mysterious world.
Seriously. What's so good about my voice, anyway?
يا إلهي! ما الذي يعجبهم في صوتي يا ترى؟
Mal im Ernst, was finden 
die alle an meiner Stimme?
En serio, ¿qué tiene mi voz de especial?
En serio, ¿qué tiene mi voz de especial?
Sérieux…
Fala sério. O que tem 
de tão bom a respeito dela?