Dong Xiaowan and Dong Xiaohai are cousins of the same age. When Dong Xiaowan was blind due to illness in kindergarten, he was always teased by his classmates, which also affected Dong Xiaohai, so Dong Xiaohai could keep a distance from his sister. Once, a classmate was looking for trouble for Xiaohai. When Dong Xiaowan found out, he stumbled over and held Dong Xiaohai in his arms to block the attacks of the classmates. This time, Dong Xiaohai was shocked. He rebelled angrily and drove away the classmates. He also determined to protect his sister in the future. From then on, the relationship between the siblings was very good. When he was 11 years old, an old man suddenly came to his home angrily, saying that he was Dong Xiaohai's biological grandfather, and wanted to take away Dong Xiaohai's family of three. After Dong Xiaohai understood what had happened, he negotiated terms with his grandfather, and agreed to attend the same university as Dong Xiaowan, and there was no further news. After Dong Xiaohai left, Dong Xiaowan's eyes received the best treatment. After 2 years, she regained her sight. She began to study hard, and finally got admitted to the university she had agreed with Xiaohai, but she couldn't find anyone for him...
Intention: Childhood sweethearts, we care for each other, I just want to protect you