Marinette and the gang are heading to room 121, that has been shut down for so long, they forgot it was there. A new teacher is going to be teaching in that class, and half of the 16 year olds in Mari's class think that she is going to be an old hag, who doesn't know her left from her right. The other half thinks that she is going to be a 25 year old woman who is fresh out of collage. So what happens when they see a 14 year old girl from another country in the teachers chair, typing away on a purple laptop while listening to some music? Complete and total chaos.