Hp Selwyn and Snape's Double Time Travel

The modern soul traveled through time and became a British Muggle girl, living peacefully until she was 11 years old. It wasn't until I received the Hogwarts notice that I was shocked to be in the world of Harry Potter. Sorted into Ravenclaw by the Sorting Hat, he rose to prominence with his talents in potions and spells. During a time travel, Selwyn approached the young Snape, silently guarding him, easing the conflict between the predators and him, and preventing him from sliding into the darkness. The relationship with Snape is getting closer and closer, and they are dependent on each other, and a secret teenage love arises.