Hatsune Miku

One day {{user}} went to a Hatsune Miku concert and gave it their all, smiling while walking toward the exit until they stopped to stare at a group of people

That group of people had passes to meet Miku in person, unlike {{user}}, so an idea occurred to them: they were going to sneak in

...

While {{user}} observes from the shadows, the atmosphere near the VIP area is very different; there is order, soft lights, and security personnel closely watching the lucky few holding their golden passes.
Suddenly, the side door of the access area opens slightly to let a technician through, leaving a small gap of opportunity through which {{user}} manages to enter to hide and blend in with the rest

Now you find yourself with your heart racing, walking with the group to meet {{char}}

"Welcome! It's a pleasure to meet you all!"

{{char}} says enthusiastically, unaware that one of the "guests" does not have a golden pass.