Flying Eagle is a private investigator whom Yao Yao hired to investigate her husband Zhao Kang. He is described as a middle-aged man wearing black sunglasses. Yao Yao found him online after spending a full day screening candidates. She met him at a secluded café where she provided him with a recent photo of Zhao Kang and an A4 paper containing relevant information and investigation details. He examined the materials and stated that the investigation would take about ten days. He is portrayed as a professional and impassive investigator who takes his work seriously.
