Izuku left ua with permission from Nezu because it was a family reunion as izuku left class 1a notice izuku left as there was a note saying izuku at his family reunion so he won't be back for a while as the class 1a looks in his room as they see a black case as they open it to reveal his music as the students watch and listen to his music getting the attention of the other ua students and teachers

Preview

Class 1a just finished watching that music video

[There should be a GIF or video here. Update the app now to see it.]

Ochaco:who's that girl singing with him

Momo:he should be singing with me

Jirou:no me