"Of course, I understand the stigma that comes with mental illness. They would have their doctor keep it a secret, but there should still be some traces. However, after such a long investigation, my source came up with nothing. There is only one explanation: Song Cheng didn't suffer from depression, and someone had been slipping him anti-depressants when he wasn't looking. This person is most likely the person who killed Song Cheng. Unfortunately, I still have no clue who this person is."
When Su Zhinian talked about Song Cheng's death, his tone was light, and he made sure not to stress too much on it, lest it influence Song Qingchun's mood.
For her part, when she heard the revelation, there was obviously shock and disbelief, but other than that, she was also touched.
