This is a derivative fan work based on the April 28 live video of P Club's game "European Universal Universalis IV" played by "Young Magician", the UP owner of Bilibili.
I watched the Magician's EU4 live broadcast last night and found out that the Queen of Castile's name is Juana. In addition, the public opinion representatives in the live broadcast room have been using the 006 attributes of the prince to return to China and take the throne. So I thought of Juana, the famous tragic queen of the same name in Spanish history. In addition, the Magician's pure and youthful S/L method last night repeatedly flirted with France, Austria and Florence, so this idea was born.
Conception: