The Best Husband Is Too Difficult to Deal With

The male and female protagonists are physically and mentally clean, 1V1, a strong alliance, plus a little bun with super powers. She was a widowed single mother until she met him who she hated so much. It turns out that he is the mysterious dead husband in her household registration book. He said: You have never been married, why are you widowed? She said: My son's father has been dead for eight hundred years, and I am just a widowed little widow. What should I do? A pair of enemies began to fight with each other. He said: Even if she dies, it will be in her household registration book.