Female, Gu Nanzhi's lifelong rival. She and Gu Nanzhi are the same age, and their families are old friends and neighbors. They constantly competed with each other in studies and careers. Jiang Yiyi has liked Jiang Chen since childhood. She confronted Gu Nanzhi at the second-hand luxury store, mocking her for selling a bag and revealing that her brother Jiang Chen was dating Gu Baorong. She looked down on Gu Nanzhi after learning she was the impostor and declared they were no longer in the same social class.
