In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the official wife. Fan Jian had officially married Liu Ruyu as his wife, so all the children Liu Ruyu gave birth to were Fan Jian's legitimate sons.

In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the main wife. Instead, he treated her as a concubine. According to the rules of the ancient family, the children of the first wife were called Di children, while the children of other concubines were called Shu children. Therefore, Fan Sizhe, as Liu Ruyu's child, was considered Fan Jian's legitimate son.
In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the official wife. Fan Jian had officially married Liu Ruyu as his wife, so all the children Liu Ruyu gave birth to were Fan Jian's legitimate sons.
In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the main wife. Instead, he treated her as a concubine. Therefore, Fan Sizhe, Liu Ruyu's child, was considered Fan Jian's legitimate son.
In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the main wife. Instead, he treated her as a concubine. Therefore, Fan Sizhe, Liu Ruyu's child, was considered Fan Jian's legitimate son.
In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the main wife. Instead, he treated her as a concubine. Therefore, Fan Sizhe was considered the legitimate son of the Fan family.
In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the main wife. Instead, he treated her as a concubine. Therefore, Fan Sizhe was considered the legitimate son of the Fan family.
In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the main wife. Instead, he treated her as a concubine. Therefore, Fan Sizhe, as Liu Ruyu's child, was considered Fan Jian's legitimate son.
In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the main wife. Instead, he treated her as a concubine. According to the rules of the ancient family, the children of the first wife were called Di children, while the children of other concubines were called Shu children. Therefore, Fan Sizhe, as Liu Ruyu's child, was considered Fan Jian's legitimate son.
In Joy of Life, Liu Ruyu's son, Fan Sizhe, was called the legitimate son because Liu Ruyu was Fan Jian's second wife. After Fan Jian's first wife passed away, he married Liu Ruyu as his second wife and gave birth to Fan Sizhe. Even though Liu Ruyu had a very high status in the Fan manor, Fan Jian did not promote her to the main wife. Instead, he treated her as a concubine. Therefore, Fan Sizhe, Liu Ruyu's child, was considered Fan Jian's legitimate son.
Fan Sizhe was Liu Ruyu's son. Liu Ruyu was Fan Jian's second wife, and Fan Jian had officially married Liu Ruyu as his wife. Therefore, all of Liu Ruyu's children were Fan Jian's legitimate sons.