Who are the biological parents of Dad's Quan Wei?

The TV series "Daddy in Charge" is being broadcasted. This drama, starring Zhang Guoli, Rulu and Gao Xin, tells the story that my father Quanlai and his four daughters, Fang Quan, Quan Wei, Quanshui and Quanai, finally joined hands to meet a happy future after going through various trivial matters.

In the play, Rulu plays Quan Wei. His father is Quan Lai and his mother is Ai Jing's sister Eina. Quan Wei is the second daughter of Quan Jia. Quan Lai said at the wedding that Quan Wei is his first daughter, which means that the eldest daughter Fang Quan is not his own daughter. So Quan Wei's father is all here, and her mother is Ai Jing's sister Einar. So whose child is the eldest daughter Fang Quan?

Fang Quan, the eldest daughter, was born to Ai Jing's sister Einar and Zhou Xiang's father Zhou Yao Ming when she was young, so Fang Quan is Zhou Xiang's half-sister. But it's all because Fang Quan has always been his own daughter.

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Celebrity chefs have the right to be responsible for their own principles. Their greatest hope is family harmony and daughter happiness. The eldest daughter, Fang Quan, is a housewife. Because of her frugality, the eldest son-in-law Huang Youcheng doesn't like her, and their marriage is on the verge of breaking up. The second daughter, Quan Wei, was born beautiful and became a "stepmother" because she married Du Siyuan, a second marriage lawyer. The third daughter, Gwenton, has a strong heart, and her love with Guo Chong, a rich second generation, was blocked by her parents and eventually broke the shackles. The fourth daughter met a mysterious man with artistic sense, Zhou Xiang, who made various choices between Zhou Xiang and Chong Wang. The four sisters have their own difficulties, and they are intertwined from time to time, which makes everyone have a headache. My evening love with Huang Peony not only faced my daughter with different attitudes, but also met the threat and obstruction of my sister-in-law Ai Jing. Zhou Xiang's misunderstanding of Quanlai led to his father's death and pushed Quanlai to the forefront. In the end, Ai Jing's death cleared up all misunderstandings, and the whole life was calm again. Quanlai and her daughters warm and tolerate each other with love and join hands to welcome a happy future.