Have you ever doubted that you are not yourself at all?
Yu Jiayun always thought that he was Lu Yang, because by chance, his soul traveled to Yu Jiayun's body, took over the life that should belong to Yu Jiayun, prospered in the entertainment industry, and also occupied the love that belonged to Yu Jiayun. Later, he realized that Yu Jiayun had always been Yu Jiayun and never left, and Lu Yang was the virtual character that did not exist.
The author's imagination is a bit open and the writing is a bit profound. If you don't understand it, I will explain it. I hope everyone will support it and let us use our imagination together.