We have always lived for ourselves, but life is always unsatisfactory. We are constantly pursuing in the mud. Everyone is born with weaknesses. Chen Zhen (male protagonist) has been without a father since he was a child. His mother has been bedridden for many years. He was killed in a car accident. He met Yi Ning (female protagonist) in accidents. She lost her legs since she was a child and uses prosthetic limbs instead of walking. Her father suffers from Alzheimer's disease. Yi Ning's younger brother Yi Fan unfortunately fell and died during a trip, causing Yi Ning's mother (Jian Ning) to suffer from severe depression. If there are variables in life, then Yi Ning is him, that x variable
Intention: In the midst of suffering, there will always be variables around you