This is a story that begins with the encounter between Zhan Zhao and Bai Yutang. I want to write a story about how they met, got to know each other, and promised each other. They met in Jiangnan, fell in love in Jiangnan, and finally died in the world of Jiangnan. So I have to say that this article is a tragedy. I can't help but people just love tragedies these days.