C139 Little Class

"Speaking of which, it was you who reminded me that Liu Ying's mental state was not right. That's why I went out of my way to investigate this aspect. A large part of the reason why Liu Ying was so crazy that day was because Zhao Chun gave her a drug that could cause mental disorder. "

Su Mei's eyes lit up as she looked at Wai Si. There was a trace of gratitude in her eyes