Yes.
Sun Shanshan was never Sun Dingbang's own flesh and blood.
Back then, before Sun Dingbang, Lin Guimei had a first love, and after they first tasted the forbidden fruit, Lin Guimei became pregnant.
But because her first love's family was too poor and, like Lin Guimei, came from a remote village.
In those days, abortion required family consent, and unmarried women who had abortions were subjected to criticism and education, and even reputation damage.
Lin Guimei neither wanted to have an abortion nor marry her poor first love.
So she set her mind to find a good father for the child in her belly.
Soon, the well-conditioned Sun Dingbang appeared before her, and moreover, Sun Dingbang was honest and sincere, and not only was his family well-off, he had been pursuing her for a long time; with a mix of resistance and acquiescence, Lin Guimei agreed to Sun Dingbang's courtship, and they quickly obtained their marriage certificate.