There is a bad baby at home, mommy is running away from marriage

My name is Lin Zeyao and I am my elder sister, and the black-bellied brat next to me is called Lin Zexi and my younger brother.
We are seven years old and our mother's name is Lin Xiyao.
A 27-year-old woman who is a medical genius but an idiot in life.
We don't have a dad, just because Mommy said Daddy died, so Mommy said she's going to start looking for a new Daddy for us.
Suddenly one day, the dead man, Daddy, stood in front of my brother and I and said, "Daddy will take you home."
Si Chenkai never thought that he would have a pair of seven-year-old children.
But when he knew who the child's mother was, his heart that had been silent for seven years jumped up again.
But the angry dead woman actually told his son and daughter that he was dead, and even found a wild man to cuckold her.
Wait, he must let the woman take the initiative to return to his side, and he will come back to train him well.

Key words of the novel: There is a bad baby at home, Mommy quickly escapes from marriage, no pop-up window, there is a bad baby at home, Mommy quickly escapes from marriage