When they spoke in the Imperial Palace a week ago, it could be said that some of their questions remained unanswered, and one of those unanswered questions was how Xia Qiao still didn't get an answer about how Lan Zihao suddenly created the dragon rain when she was dancing on the palace grounds.
Back then, instead of immediately answering Xia Qiao's question about why the man created the dragon rain, the man instead asked her how she knew about that, and Xia Qiao ended up telling the man about how the Eldest Prince suddenly invited her before she ended up standing in front of the Second Prince's quarter.
The matter related to the dragon rain was indeed important for Xia Qiao. When the rain suddenly poured, she continued to dance in the rain, assuming that someone intentionally wanted to sabotage her performance, and that was why she didn't want to admit defeat by stopping the movement of her legs, arms, and body.