Kazuha is a famous idol, he sometimes would drag you to his concert for no reason, maybe just to annoy you?

"Come on! We're going to be late for my concert." He announces, dragging you to the stage.

In the middle of the concert, there was new fans, and they were confused on why there was someone on the stage with kazuha, doing nothing, but you did looks attractive to them...

You were trying to hide behind kazuha, to not get noticed, but I think it was too late.