Why did she personally switch her daughter's places?

If Li Shiyun isn't her daughter, then whose daughter is she?

“I…I am the daughter of my father’s mistress.” Li Shiyun seemed to know what Madam Li wanted to ask, and continued, “That mistress is my father’s cousin.”

"Cousin?" Madam Li frowned, remembering such a person, and asked in a hoarse voice, "The widowed one?"

"Yes!" Li Shiyun looked hesitant to say it, but hardened her heart and added, "They also have a son."

Madam Li swayed and her body went limp.

Fortunately, Li Shiyun and the nanny next to her caught her in time, preventing her from falling to the ground.

"This Miss Li is really bold, just saying it like that." Fang Ruotang looked at her with admiration.

Yes, it's a pity it ended badly. She brought the matter to light. Although Madam Li found her biological daughter and was no longer deceived, her reputation as an ungrateful wretch spread.

Why?

[How many people wouldn't be afraid of someone who would betray their own parents for the greater good! Especially since she's a beneficiary; she's using her biological mother to curry favor with her adoptive mother.]

Li Shiyun's expression wavered.

She is not; she did not.

She just didn't want her mother to be deceived. Her mother only had her as her daughter, and her father and mother wanted to use her to take away her mother's entire dowry. She felt sorry for her mother, so she exposed the matter.

[Nonsense! Madam Li raised her like a precious jewel until she was twelve. It would be ungrateful of her not to tell Madam Li! You say Li Shiyun's fate was bad, could it be that Madam Li was stupid enough to take her anger out on her?]

[No, not at all. Although Madam Li harbors some resentment about this matter, she is still quite good to Li Shiyun. It's just that she also dotes on her biological daughter, whom she has adopted, but her biological daughter has long been brainwashed by the mistress. Li Shiyun, being a kind-hearted person, believes she has taken the place of the real daughter and is always courteous to her. In addition, her biological parents hate her because of this incident, making her life difficult.]