On Christmas six years ago, a massacre occurred at the Maria orphanage. Muggle officials explained that it was a serial murderer. But only wizards know that the scars on their bodies are the result of black magic, and the cause of death is Avada Kedavra! This incident once caused chaos in the Ministry of Magic. The only survivor was a girl with magical potential who was often bullied in the orphanage. She could not remember anything. But everything finally passed in time, and people gradually forgot about this massacre.
Six years later, the girl received the admission notice from Hogwarts. Who caused the massacre that year?
The resentment accumulated through study breaks out.
This article is probably a trap and will be updated from time to time, so proceed with caution.