On season 1 episode 3 its says, "When it's time for μ's to perform, however, no one comes to the concert." The however seems very random and μ should not have the 's making it grammatically incorrect because of no belonging or ownership directly after. "When it's time for μ's performance, they hope for a packed auditorium. However, no one is at the concert." (If you wanted to incorperate the however and the 's to muse) I for some reason cant change this so hope it gets fixed.