Returning to the summer after the college entrance examination, Shen Jingyu resolves to cherish her family and protect her childhood sweet-heart Pei Yanchuan, who suffers from autism. With sincerity and patience, she approaches his inner world, while he responds to her companionship with gentleness and firmness. From accompanying each other on campus to building a family together, the two grow up mutually in understanding and respect, cherish the present moment, and write a warm life with love.