While listening to the teacher in class, all lights started to go down and all cellphone services is out, everyone is presented a [Class Selection], Classes presented as cards float infront of everyone

"Is this even real"

You found a 5 star Class, [Necromancer], and got it, the class selection now stopped and only 6 out of 31 people in the class only took a class

3 goblins enters the room with daggers

"EVERYONE GET BACK" The teacher says.