Is “The historical records state his macro identity as the emperor of the puppet Qi, while the novel adds specific cruel acts to arouse public indignation” true?

The History of Song, Biography of Yue Fei, truthfully records his deeds: 'Liu Yu further strengthened his troops and stationed them at Xinye; Yue Fei and Wang Wan attacked him from both sides, repeatedly defeating his forces.' The novel The Complete Story of Yue Fei, Chapter 33, adds an extra layer of color: 'At that time, Liu Ni fled back to the mansion, heard that his father was enjoying the scenery and cooling off on the city wall, and immediately went to the top of the city wall to see Liu Yu, kowtowed and cried: "Father, please save your child's life!"'