The reason why Ms. Jin’s guardian is Zhou Ruzheng is to protect the protagonist Moon Dong-eun. According to the plot of Dark Glory, Zhou Ru is a plastic surgeon from a well-off family. In order to protect the protagonist Wen Dongen, he became the guardian. Dark Glory is a TV series produced by Netflix, directed by An Ji Ho, written by Kim Eun Sook, and starring Song Hye Kyo, Lee Da_, Lim Ji Yeon, and Jung Seung Il.