Cultural relics conservation expert Shen Qingqiu and heavy industry tycoon Lu Chenzhou enter into a contract marriage, but pressure from the Lu family to conceive a child leads to frequent conflicts. At a celebration banquet, Shen Qingqiu discovers she is pregnant with rare dragon and phoenix twins, yet Lu Chenzhou holds a false sterilization diagnosis from five years ago, doubting the child's paternity. The two make a ten-billion equity bet agreement, and after enduring suspicions and perilous situations, a paternity test confirms their blood relationship. The truth is uncovered: former wife Bai Ruolin bribed the hospital to forge the report. At the full-month banquet, the wicked woman attempts public extortion and is brought to justice. Lu Chenzhou repents and apologizes, and the two resolve their differences, welcoming a fulfilling home as a family of four.