Ou Lan trusts Qin Qingnan, and that's because of Zhan Moxiao and Lin Ziran. Moreover, her long acquaintance with Qin Qingnan has established a solid foundation of trust.
So she had no hesitation in entrusting Baili Mu's life to Qin Qingnan at the time. Facts have proven her choice was right; Qin Qingnan's medical ethics and skills are equally commendable.
However, Baili Kai is not familiar with Qin Qingnan. Although he has heard of his exceptional medical skills, his limited understanding led to distrust. When Ou Lan suggested inviting Qin Qingnan for his diagnosis, his first instinct was to refuse.
Yet before Baili Kai could respond, Baili Chen said, "I trust that young man, Qin Qingnan, as well."
Baili Chen knew that it was Qin Qingnan who cured Baili Mu's dissociative identity disorder, leaving him with a good impression.
