The pathetic shou (bottom) and ultimate big boss from the novel, nephew of Guan Ciyan. He is ten years younger than Guan Ciyan. He has feelings for Jian Yang and publicly tried to save him at the banquet, positioning himself as a hero. He is described as kind-hearted and stood up against Guan Ciyan to rescue Jian Yang at the S+ project gala. In the original story, Jian Yang became his spy after being moved by his rescue. Guan Jingyu is seen as outshining Guan Ciyan in this moment, though Jian Yang internally fears this will put him on Guan Ciyan's death list.
