Snape xOC, when it comes to adult love, you have to be patient and restrained. If you want to see Mary Sue and Silly Baitian, please don't click on it.
In Generations, the plot is all about Rowling, traveling through time in order to prevent death at the cost of death, there is no golden finger, it is a teacher-student love affair.
Once again, there is no silly, no Mary Sue.
Purpose: Paid travel to prevent death