Actually, she didn't sign a contract with Rich Source Tavern either. In ancient times, there might not have been such an advanced concept as contracts. Without signing any written agreement, if she denied it, no one could do anything about it.
However, she was not that unscrupulous a person.
She had never been a good person, but in being a bad one, she needed to have principles too.
Since she promised not to say anything, she wouldn't.
"Yeah, we can't let people lose money." Someone else said that. No one asked for the recipe, but some people became curious, "Su Qingyue, how much did you sell the stir-fried fern recipe for?"
She just smiled, "Why ask so directly? Would you tell me how much money your family has?"