(Warning about OOC characters!!! This is a work written by the author during his free time in his senior year of high school. There may be OOC in it. Just understand that it is self-made. If you don't like it, don't comment!!!) Lin Wan, a 28-year-old doctor of social sciences, accidentally traveled to the magical world of 1981. She found that not only was she familiar with the plot, but she also held a copy of "Research on Structural Risks and Reform Paths of Magical Society" from the future.
Faced with the established tragedy and decadent system, Lin Wan refused to become a bystander of history. She sneaked into Hogwarts as a "Muggle Studies Professor", used social network analysis to gain insight into people's hearts, and used game theory to leverage the situation. From guiding Snape towards redemption, to clearing Sirius' grievances; from dismantling Voldemort's resurrection conspiracy, to promoting the House Elf Rights Act... She is not tinkering with details, but conducting a grand social experiment.
When all the chess pieces are in place, the network of destiny has been quietly rewoven. This time, she wants to weave a new dawn for this world full of scars.
