Although it was just a small medicinal recipe, its importance was immense. If Sang Zhilan truly wanted the recipe to prevent illness, then Tang Yuxin could give them the medicine she had prepared, as much as they needed. After all, if a stranger asked for it, she would oblige, not to mention someone who was related to her by blood. Even if she disliked Zhilan, even if she hated her, Sang Zhilan did indeed have a point when she said that Yuxin owed her a life for giving birth to her. Even if Sang Zhilan considered her words as trivial as passing gas, Yuxin still had to acknowledge this blood connection.
"I want the recipe."
Sang Zhilan really wanted to yell at Tang Yuxin, "You ask too many questions."
But she didn't yell in the end, afraid that the more she yelled, the less likely Tang Yuxin would be to give it to her.