Goro accidentally bought two tickets for his favorite idol Iyo's concert, so he invites Koki along. After learning that Koki has become a KamiErabi God candidate in Tatsuya's place, Goro ends up running into Iyo in a men's bathroom just prior to the show.
In that case, I'll take 
your word for it, but...
Da kann man wohl nichts tun.
Ah... Allora forse non fa niente, ma...
Nesse caso, eu não tenho escolha, mas...