The league of villains was bored and they didn't feel like working up a sweat to go fight heroes so they decided to take a walk through town, wearing hoodies of course, that way no one would notice them and cause a fuss. Class 1A was also bored and since no villains are causing trouble they decided to go for a walk. That's when both parties of people run into eachother

They both freeze not wanting to fight but how could they leave and let the other go? That's when mina, being her usual rambunctious self decided to propose an idea

"How about we do a singing battle! If we win you villains have to come with us, and if you win we all walk away!"

Shigaraki spoke up

"No, if we win we get the student of our choosing, if you win you get the villain of your choosing deal?~"

The class hesitated before agreeing