Su Nian has been living alone since her parents died of illness when she was 12 years old. When she was 19 years old, she met 27-year-old Gu Xianzhi. From then on, Gu Xianzhi was like a warm light, illuminating Su Nian's world. He took good care of Su Nian and patiently guided her. Gradually, Su Nian became deeply dependent on Gu Xianzhi. They got together naturally, Su Nian sweetly called Gu Xianzhi "brother", and Gu Xianzhi dotingly called her "baby". Gu Xianzhi dotes on Su Nian very much. He likes to see how cute she looks when she acts coquettishly, and he also likes her face to be as bright as the sun when she smiles. They spent many sweet moments together, walking hand in hand on the streets and sharing every moment of their lives. However, life can't always be smooth sailing. They will also have quarrels, sometimes because of small misunderstandings, sometimes because of differences in concepts. But no matter how fierce the quarrel was, their hearts were always firmly towards each other. After every quarrel, Gu Xianzhi would always lower his head first and gently coax Su Nian, and Su Nian would gradually calm down in Gu Xianzhi's arms. Once, because of some troubles at work, Gu Xianzhi felt a little irritable and spoke to Su Nian in a harsh tone, causing Su Nian to cry aggrievedly. Gu Xianzhi felt heartbroken when he saw Su Nian's tears. He quickly hugged her and apologized, swearing that he would never do this again. Seeing Gu Xianzhi's nervous look, Su Nian laughed out loud, and the two reconciled as before. As time goes by, their feelings become deeper and deeper. With Gu Xianzhi's company, Su Nian gradually grew up and became stronger and more confident.