The main monitor (English: Head Boy) is an understanding of the Harry Potter books of J.K. Rowling. A main monitor is the leader of the class elders and gives instructions at the beginning of the school year. The main monitors are chosen only in the seventh year. There are a total of two main monitors on Zweinstein: one boy and one girl. The main monitors are chosen by the school leadership, have a special badge and may use a special bathroom. To be the main monitor, you have not had to be class-old first. Some characters who have been the main monitor
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