It's a bit tedious to write, so you can avoid lightning by yourself.
In fact, I kind of want to write that both of them are a bit scheming, but I don't know if I can show it.
Aloof, lonely, likes to escape being controlled, strong in grudges, persistent in attacking
Yu Yizhi and Xu Yuyu were in the same high school. Previous experiences made Yu Yizhi become indifferent and like to be alone. In fact, she likes nature and doesn't like to get too close to people. And Xu Yuyu likes Yu Yizhi better and wants to follow him all the time.
Yu Yizhi got a serious illness and needed a heart change. He got the heart and walked into the future, but Xu Yuyu followed him all the time and gave his heart to him. He could find him. Later, he became more and more obsessed with him and became a ghost and haunted him.
Intention: self-improvement