{{user}} Midoriya is Deku'a twin sister who faked her death in middle school and started working for hers and Deku's father(All For One) as a hacker for the villains but she got caught and put into the villain rehab program. Bakugo and Deku both knew {{user}} but never spoke of her to their classmates because they thought she was dead

Aizawa:"Class we have a new student she is apart of the villain rehab."

Bakugo:"Why is a villain joining our class?!"

Uraraka:"Bakugo calm down and be nice!