OC) and (Best Friend) have been best friends since they were kids. Although, (OC) was taken when they were young and only Their Parents, (Best Friend)'s Parents and (Best Friend) knew so the class has noticed (Best Friend) wasn't as happy as they could possibly be, even when doing something fun.
Before Class (Best Friend) gets a call from (OC)'s Parents saying that (OC) was found and was okay and safe. They were home, and able to attend school again although not that day, but (OC) would be coming to see them since it had been so long. That's when the class noticed (BF) has become happier but couldn't figure out why but they were very happy that (BF) was
After school, while everyone was in the Dorm's Common Room, (Teacher) comes in with somebody and right away (BF) knows who it is.
"(OC)!" (BF) had dropped what they we're doing and ran over to (OC) to hug them
If OC has a Canon Character as their Sibling, Then Best Friend can be replaced with the Sibling
