In the last life, Xiu Shu was protected by Shao Yutong until her death. She loved him very much, which Yui Shu only understood after her death. So, in order to save her, Yushu temporarily reached an agreement with the gods, just to protect her and accompany her in this life.
In order to be able to stay with her all the time, Yushu left briefly to find the method and the truth. As a result, when Zuoshu wanted to come back and say goodbye properly.
I never expected that I would be sweetly with her in this life.
Shao Yutong: "Before I left, it was you who accompanied me in my previous life."
She smiled: "After I leave, you will be with me in this life."
"You have always been with me, and I have always loved you."
Concept: Unconstrained love