Bai Fei once really wanted to protect Bai Zhi, because at that time, Bai Zhi finally thought of resisting, which made her feel like helping out this cousin who was inferior to her in every way.
Indeed, even though she never spoke of it, this was the real reason: she felt Bai Zhi was inferior to her in every aspect.
Bai Zhi didn't have a father who doted on her, nor did she have a mother who would always cook for her and love her forever.
Nor did she have a brother who was a top student.
All Bai Zhi had were parents who kept her constantly busy with chores and the bullying of Bai Yu and Bai Ye.
So, she felt sympathy for her, and one could say that Bai Fei held a bit of self-satisfaction in their positions. She thought her cousin Bai Zhi was really cute. She wanted to help her...
But later Bai Zhi became better and better, increasingly outstanding.
Bai Fei didn't actually have any problems, she just noticed that Bai Zhi was getting better, and felt happy for her.
