Yang Wen'an no longer remembers what feelings are. Even existence has no meaning, what is left is just a skin that has lost its soul, and only a little curiosity about feelings is left. Since that rainy night, he has been conducting long and meaningless experiments. "Yang Wen'an, I am your sister, how could you do this to me!" "Yang Wen'an, you are a monster!" Monster? Maybe, but he finally found something interesting. At least, it can make his life less boring. "Zhao Yuzhi, you owe me this. Before my experiment ends, just stay by my side."
Concept: Feelings are the most beautiful reward and the cruelest punishment given by God to human beings.