When Shen Tannong, a chemistry major, traveled to a parallel world where "technology has degraded and orcs dominate", she accidentally became a symbiotic contractor of Mo Li, the heir to the Black Panther clan. The two relied on modern scientific knowledge and primitive animal power to save each other, but were forcibly separated in the rift of time and space. When she returned to modern times, she found unexplained claw marks on her left arm, and three years later, the wounded black panther appeared next to her bed.
