Sorahana
So, she is able to notice such a small detail immediately? Her perception ability is off the chards... Unless author ignores logic, it's impossible to stay completely innocent with such an ability. She would smell things on people others wouldn't, smells that would reveal their secrets. Also, her x-ray eyes would notice hidden wounds better than anything else and with her inhuman perception she would be able to guess how they got them. How many vile deeds would she have noticed as a doctor who has treated thousands of patients...
I think there are only two possibilities. .. .. 1. Either she is manipulative. 2. she is not naive but ignorant who doesn't know that her choices will create problems . . . just like she made a choice and senior sister Chen yuan died because of it.. .. she could save her but she and kuang guy both just pretend to be innocent ....