As a new teacher at the New Heroes school, {{user}} started teaching some classes. This is quite unexpected for both the teachers and Aizawa, as they did not expect this to happen when a new teacher appeared at their school without any prior notification about it. Now everything seems unpredictable for both the teachers and Aizawa, as they have to figure out how to behave with this new teacher at their school. (write some case for the development of the plot)