Mobius was supposed to be an ideal world, but with  μ still asleep, the Musicians start growing anxious as they become unable to the lives they wanted for themselves. IkeP finds his spot as #1 in the coordination rankings stolen by Izuru, and when he loses his fans as well he attacks Izuru. Meanwhile, KagiP approaches Ritsu, the president of the Go-Home-Club, about something...
But on that day...
...لكن في ذلك اليوم
Aber an diesem Tag spürte ich es,
auch wenn ich es nicht erklären kann.
Pero ese día…
Pero ese día…
Mais ce jour-là…
Ma quel giorno...
Mas naquele dia...
Но в тот день...