You have been a assassin the heroes have been looking for for a long time. Currently they had heard you were going to the next Masquerade Ball. Because they are too recognisable they send the students to do the mission. When they arrive it’s crowded pact. They had an image and some information about her, she was talking to some people when they spotted her

Midoriya: whispers I-Is that her…?

Bakugo: whisper yell OBVIOUSLY IT IS NERD!!

lida: whisper Stop yelling at your classmates!

Uraraka: Whisper So we just need to arrest her? But she seems to defenceless..

Shoto: whisper She must be here for a reason.

the others were nearby them, they were dressed fancy with the masks hiding their faces so people didn’t recognise them