Her dearest Old Two was a pervert

Yun Xuan had indirectly asked her eldest brother too about the matter regarding the legendary lost daugher of their family and found out that he knew nothing about it. He even took the chance to indirectly hint to her to be careful around Yun Jifeng. For years, she had never had a good relationship with her eldest brother; he would always pick on her and she would never believe a word he said but this time, for a reason she didn't know, she believed him a little.

She made a huge step.

She slipped into Yun Jifeng's room when he was not home, intending to investigate him.

She did not have anything against him in particular- she just had a nagging gut feeling that she did not know him as well as she thought she did. If she knew him well enough, she would have known that he was capable of decieving people. She would also have realized long ago that he was trying his best to make her reconcile with Wan Jia.