Yan An was Chinese.
The Country of Yan in the middle of the night was an important background in the story. It was an ancient country that had been invaded by a strong enemy and lost its land. Long Qing, the Second Prince of Yan Kingdom, was one of the characters in the play. He was a proud and conceited figure. He was once the most beautiful man in the world, but he was eventually shot to death by Ning Que. As for the other details and ending of Yan Country, there was no mention of it in the information given so far.
Da Bao was a Chinese brand. Dabao was founded in 1993. It was a domestic skincare brand that integrated research and development, production, sales, and service. Although it was acquired by Johnson & Johnson in 2008, it was still considered a Chinese brand. With its deep corporate culture, research and development strength, and market reputation, Da Bao had won the favor and trust of many consumers and became the best skincare brand in the country.