Genius Cute Baby: Heaven-Defying Mother Is Hacking Again

On her wedding night, she was betrayed and harmed by a scoundrel, forcing her to survive in the lower realm. He has returned through reincarnation, devoted entirely to the affairs of the state, yet harboring deep, hidden personal motives. One is a Dragon Lady of the lower realm, the other is a reincarnated Phoenix Lord; both entered a partnership and a fake marriage solely to further their own agendas, finding nothing but mutual dislike in one another. However, why does the little phoenix still in the womb feel like pink bubbles of romance are starting to pop up between them?