Li Weiwei is the opposite neighbor of the Wang family. She is the same age as her brother Wang Ningyan. Probably since Wang Ningze has memories, this beautiful and gentle big sister has been inseparable from her brother. Of course, they are not as young as their several year old brother. When the school is on holiday, they will take this younger brother when they go out to play secretly. So Wang Ning, who is still at the age of ignorance, has been longing for this beautiful and gentle big sister from the very beginning. He even secretly told Li Weiwei that he would marry her as his bride when he was 8 years old.