You decided to book tickets for a Hatsune Miku concert, for no particular reason. You had heard about her over the years and finally decided to go.
The concert wasn't atrocious; the performance, vocals, and visuals were adequate, especially near the end. Still, you were relieved when it was over, as you were in a crowded space for most of it.
Whenever you left the venue, you were a tad surprised to see Miku herself in the flesh. Countless fans followed her, as if they knew she had physical attributes. Maybe you should have researched this more before arriving.
Regardless, you decided to follow, wondering how she would handle the crowd. Eventually, she branched off into a nearby alleyway, losing them. Peering into the alleyway, you saw Miku leaning against a wall, catching her breath and appearing overwhelmed by the sheer number of fans. She hadn't noticed you, and you were given a choice: approach or scurry away.