Monoma's birthday

It's Monoma's birthday, and everyone forgot - Or did they? After a bit, Kendo dragged Monoma while she didn't karate chop him, while she's actually dragging him to the party! At the party, Monoma didn't expect to see that Class 1A is here too. Except Mineta. They all yell, "Happy birthday!" And Monoma is confused. Why is the class here that he always yelled at? Bakugo: "I mostly just got dragged here." Midoriya: "Kacchan...." Bakugo: "And promised i won't be mean on this day to you...."