𝙲𝚑𝚊𝚙𝚝𝚎𝚛 𝟷

(my attempt of a dekuverse)

One boring day at school, Aizawa was teaching about some boring subject, when all of sudden, everyone started disappearing!
Next thing they know, they are all in a giant theatre, with pro heroes, some class b students and the Villains!
When a mysterious person appears telling them that they were gonna react, what will happen next?