[Modern fantasy setting, female head of household x male servant, both chaste]
The male and female leads were born on the same day and died on the same day. The story is centered on the heroine. The hero is strong, but she is stronger, and the difference in their status is absolute.
For a long time, their daughter disliked her father, believing he was a shameless flatterer who fawned on his mistress. Fortunately, her grandparents kept him in check, so he never caused a stir. It was only after appearing on a variety show that she finally understood the subtle atmosphere between her parents, and what her grandparents really meant when they sighed at length whenever they talked about her father.
After their daughter was born, the heroine was at the peak of her career during her confinement and had no time to pay attention to the hero or their child. When work finally eased up, she realized he no longer had eyes only for her. So she left their daughter in her parents' care and locked him away until he was so thin he looked like a shadow. Though he recovered his health afterward, he never got his nerve back.
When the hero was confined, the heroine would go back to spend time with their daughter whenever she wasn't busy. Whenever he saw his daughter, he had to call her Young Mistress, though he was spared the requirement to kneel. That's right: the only child of the Song family, a rare blessing. After giving birth to her, the heroine made it clear she would never have another child, and the hero underwent a vasectomy.
When the rules were lax, the hero's mind wandered. When they were strict, he focused and paid attention. He took the initiative to please and seduce the heroine, hoping to return to how things used to be, unaware of just how alluring he had become. When their daughter turned five, the heroine realized something was wrong. The hero's world truly contained only her, and he had become like a puppet. Around then, an old friend planned to make a variety show called Close-Up on Slaves. The heroine knew that if she didn't change things, she might lose the man she loved, but changing him all by herself would be exhausting.