What is G.E.M.'s sister's original name?

Deng Yiling G.E.M.'s younger sister, whose real name is Deng Yiling, and G.E.M. are not twins, but they look alike. When G.E.M. makes her debut, her sister will appear in a short film of General Electric ... On 20 14, Deng Yiling is a model. On February 1 2020, G.E.M. and her sister Deng Yiling took a photo, which looked very similar. 20 16, G.E.M. has a photo of watching the moon with her sister, and her temperament is not lost at all.