Around six in the evening, Ran Tao finally certified what Ma Laodan had said. There was really a doctor at the mental hospital that had bought Cui Lizhu's medicine illegally.
However, the medicine had vanished into thin air somehow! According to the doctor, the medicine that Cui Lizhu sold to him was Butyrophenone. As this medicine was expensive and Cui Lizhu was only selling it to them at half the market price, they eagerly bought it.
Hence, Zhao Yu had finally found out the truth about Cui Lizhu's business dealings at the mental hospital. However, he still could not understand why, if Cui Lizhu wanted the medicine back, she just didn't ask for it. Instead, she stole the medicine that she had sold them. This was considered to be despicable behavior, even among thieves!
Due to this, Zhao Yu felt that the medicine must be extremely important to Cui Lizhu. Otherwise, she would not have done something that so clearly went against her principles.