"It's also a way to vent for Ying'er."
...
On the first day of June, Shengjing celebrated "Summer Market."
The Astronomical Bureau had predicted the weather in advance, and the day was clear and sunny. In the early morning darkness, Lu Tong joined Chang Jin and a group of medical officers in the carriage heading to the hunting grounds.
The hunting grounds were at Huangmao Hill.
The mountain was lush with greenery, the trees tall and verdant. When the Crown Prince was alive, he often spent the summer here to escape the heat, not returning until after the entire month of August, when the autumn hunt began.
Now, with the autumn hunt changed to the Summer Market, it was more convenient for taking refuge from the heat.