What is white moonlight?
For Liang Xiayun, Bai Yueguang probably means that although he will be even better ten years later, only the person he was when he was a student makes her heart move.
Demining:
1. Practice emotional drama + rehabilitation work, without losing sweetness;
2. Most likely it will be a short story, not too long;
3. The heroine had an unrequited love when she was a student. She did not have any romantic relationships or intimate behaviors before she was underage. The heroine did not end up with Bai Yueguang in the end (but I don't think this is BE).
Purpose: Become a better version of yourself