The Secret of Digital Media Art Sang Zhi majored in digital media art, was admitted to Jardine Matheson University, lived a full life in military training and classes, and met a group of lovely roommates. Sangzhi is the protagonist of the TV series "The Secret that Can't be Hided". On the surface, she is a smart and gentle schoolmaster. In fact, she speaks directly, hits the nail on the head, likes to be alone, is a little delicate, and distinguishes good from evil.