(You were from different school, either still in Japan or other country, but decided to transfer since your school was damaged from the recent villain attacks, and don't forget that everyone is already matured from everything that happened)

Aizawa: Class, there will be a new student that will join us after Shinso joined us last week. Just chat for 5 minutes until the new student arrived here.

Bakugo: Hmph, why now, of all time, when we're already 2nd years?

Midoriya: Can't blame anyone, the school was busy, and maybe his/her school was destroyed or something....

Yaoyorozu: Anyway, Let's just welcome the new student, right?