This novel mainly tells the story that the protagonists Mai Mai and Mai Xiao also moved to another city. This is a suspense story, humorous and sad.

The protagonist Mai Mai is in the fourth grade this year, and Mai Xiao is in the third grade. Mai Mai is naughty, and Mai Xiao is smart and sensible. Soon after, Mai Mai knew that Mai Xiao Ye was not her own sister. Mai Mai remembered the happy time he spent with his sister when he was a child, and he was not sad. I think McMillan is beginning to understand. Like once, when they came home, they were robbed. The robber asked them to take out everything. If they don't take it out, they will leave the wheat leaves. Mai Mai bit the man's arm while he was not looking. The man's hands were so sore that he quickly dragged the wheat leaves. I think this is a good sister's role model.

It turns out that Mai Mai was adopted by Mai Xiao Ye's parents. I think Mai Xiaoye's family are very caring people.