Tang Tang always asks Xiyan: "Can we go to the end?"
Xiyan would say gently every time: "Yes."
Tang Tang doesn't understand love, all the love she feels is given by hope Yan
In Xiyan's place, Tangtang doesn't have to grow up
Xiyan's happiness comes from Tangtang's happiness
"Xiyan, I love you"
"I love you too"
Gentle big sister & heart-warming child
Concept: Two people who love each other enough can make it to the end