The introduction is tentative and will be adjusted later.
The main plot of this article is about time travel, cp Snape, saving regrets, slow love, Gryffindor heroine, time travel from the perspective of ordinary people (if you like Goldfinger novels, you may be disappointed)
This is my first time writing an article, so the pace may be a little too fast in the early stages.
The author updates from time to time, so it may be a little slow, but it will be finished ^^
Purpose: Every choice has a price, and it takes great courage to face the price.