The complete set is for a foursome, here is half the story. The reason for writing this article was that I saw a sentence in a post forum. Readers criticized the Qing Dynasty article for not respecting history and making things up. Someone replied, "What's the point of writing according to history? You should read the history books!" So I went to read the history books, read the memorials, read the daily notes, read the real records, and visited the forum, and then I realized it! So I'm going to write, watch it if you like, thank you Jinjiang for allowing me to say such domineering words! Ps. The time it was worn was the 27th year of Kangxi.