What do you do when you find yourself traveling through time?
"Hello everyone, I am Bai Gege. I traveled to HP. I don't have Goldfinger, and I'm not a Mary Sue. The plot is seriously off track. Under the heavy pressure of Voldemort, Dumbledore and other powerful people, I feel that my survival rate is already very low!"
"Hello everyone, I am Bai Gege, and the person standing next to me is the noble and cool His Highness Slytherin. I am really Salazar Slytherin, so give me a surprise!"
"Merlin, change the script for me!!"
This is how the plot went astray, classmate Bai Gege!