Sihwa was aware of Pi, and she had heard of its magical book that included things about life, the universe, and everything else. From what she knew, there were even records of things that had not yet happened in the book… To go through those records was very cumbersome and time consuming, and it was also not necessarily accurate because the future was not fixed and could change at any time.
So, how was it so sure that Watermelon would come to her broadcast room that day? It didn't even go through its book.
Sihwa suspected that Pi was just trying to brush her off, but just as she was about to inquire further, Pi had already left the bathroom.
However, after exchanging a few words with Pi, she had temporarily gotten out of her unpleasant memories.