Yu Ming had no siblings.
When he was little, he often felt lonely when his friends couldn't play with him. Sometimes, his friends needed to go do some things with their parents when Yu Ming had nothing to do, and that made him feel bored.
At times like that, Yu Ming sometimes asked his mother, "Mother, why don't I have any brothers or sisters?"
That was the question the child asked, and the reason behind the question was very clear. When he had no one to play with, he wished he could play with his siblings, and that was why he asked his mother that question.
Hearing such a question from him, his mother habitually smiled at him before replying, "It's true that you don't have any siblings, but that's because you're a strong and independent child, Ming'er. And even if you don't have any siblings to play with, you still have me, right? Don't you want to play with your beautiful mother?"