Yue Tingfeng thought more than Yan Qingsi, and he had more logic. If that mastermind really controlled everything that time, then all of Yan Qingsi's moves and whereabouts for all these years were probably within his control.
It was likely that this person had a hand in Yan Mingzhu's assassination at the entrance of the hotel in Hai city—perhaps they were the one who orchestrated all of it.
Maybe they wanted to bring Yan Qingsi down a long time ago. Yan Songnan's death was probably because of them, after all.
Yan Qingsi's safety would not be guaranteed until the day this person was found. This was the part where Yue Tingfeng was most concerned about and the part where he was most anxious about.
When that person had struck out against Yan Qingsi at first, they had most probably felt that Yan Qingsi already sensed something amiss about her mother's death, and so they wanted to get rid of her as soon as possible.
