Only later did Sisi learn how Zhenbang had plotted against Xingbang, and it was quite the scheme he'd come up with.
Turns out, Zhenbang, seeing Brother Li, who had always been a playboy, about to become a father in six months, while he himself might never be able to, was utterly devastated.
The more desperate he became to have a son, the more he wanted to convince his brother to donate sperm. But Xingbang was incredibly stubborn and refused to budge, which drove Zhenbang to desperation, especially since it was Linglong's optimal time for conception.
Thus, the child-hungry Zhenbang implemented his long-brewing plan. He knocked Xingbang out when he wasn't looking, then somehow obtained the precious sperm, froze it with ice, and rushed it to the hospital for artificial insemination with Linglong.
