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Although this man was a bit of a popinjay, he did agree with what he said.
"Big sister, you're wrong. No matter what, the two of us have the same blood on us, so it's not wrong to call you big sister. I know you have some opinions about my mother, but he's my mother after all, so I can't say anything for you."
"But you are my big sister, and I won't help my mother say anything to you