Shuangjie/suffering from PTSD due to childhood shadow/year-old attack/adult
When Wei Qing met Xu Lingyin for the first time, she didn't know whether it was because he couldn't hear her, but her quiet look made her unable to forget it for a long time.
Because Xu Lingyin was born deaf and mute, she never had close contact with anyone, including her parents, except Dr. Wei Qing.
Intention: Even if the voice cannot be heard, the love has already touched the eyes.