She thought that by staying in A City, there would always be a chance of a chance encounter, just like that day.
However, there wasn't.
Later, she heard that Gong Beiyao had not stayed in A City for an internship.
He was in A City for only two days. Those were the same two days when she bumped into him on the street and booked a hotel for her birthday the next day, only to part ways with him on bad terms.
So, A City never had him after all.
All her persistence seemed to have become a joke.
Eventually, taking Ling Muye's advice, she got a spot as an international exchange student at another famous university in Country R.
She still fantasized that perhaps, one day, she would run into Gong Beiyao again. Just running into him wouldn't count as her looking for him, and it wouldn't mean she was breaking her promise, right...
However, she never did have that random encounter.