What's Their Relationship?

Ever since Feng Qing followed him, she had known many people inside and out. Why did she feel the so-called 'warmth and intimacy' from Xing Yue and the Han brothers? Xie Jiuhan was also puzzled by this matter. He had even secretly sent someone to investigate Xing Yue and the other two. He suspected that the three of them had some conspiracy against Feng Qing in private, so they were obedient to Feng Qing and cared for her especially.

However, after investigating for a long time, he found nothing. This was also what puzzled him the most. It had to be known that be it Xing Yue or the two Han brothers, their backgrounds were not simple, and their connections was not something ordinary people could compare to. Xie Jiuhan did not believe that they did not have a goal in everything they did. Therefore, why did they come into contact with Feng Qing?