HP: Eastern Trickster and the Dark Mark

Feng Xingchen lived in China for 12 years. A magical uprising killed seven of her servants. To suppress her inner spiritual energy and magic, she was forced to teach at Hogwarts in England. Yes, as the eldest sister of the Tianheng Sect, she came to teach. But something seemed off. Why was that tattered hat constantly shouting "Slytherin"? Why did that gloomy, black-haired man with a bun stand up and applaud? Huh? What's that platinum-haired boy over there doing, pulling her along? Also known as "Hogwarts...