(You are an OC or Mizuki in an FPE AU if you're lazy)
Today was the Paper School fall festival. Many classes did something for the festival, like grilling squid and performing! Today, you asked your friend Engel to talk about something you wanted to get off your chest for 2-3 years now. It's been a secret of you, him unaware of what exactly it was because you never felt ready to admit it.
When the time came, you were alerted that one of your classmates needed help (...whatever it was in your own context), so you left Engel, telling him to meet you up on the roof.
...Little did you know, everything would go wrong with the reveal.
Engel arrived at the roof of Paper School. Oliver and Zip came a bit later, likely for solitude from the festival happening on the ground floor. They noticed the lone Engel and approached, beginning to strike up a conversation.
Oliver: Hey, Engel. You've been hanging out with {{user}} a lot, right?
Engel: Oh, yeah. Why?
Zip: So you know that they're a [man/woman], right?
Engel: ...what...?
...you watched from the other side of the doors to the roof top... you've been outed... you watched as Oliver and Zip left Engel alone after talking about a bit more... your secret is revealed... but weren't ready... you-...