He was widely respected in Wu County and Kuaiji, this caused Sun Ce to be jealous of his fame and reputation among the locals.

They noticed that Gan Ji was walking by the road in a splendid attire while carrying a small pouch in his hand.

[1] The people who served as Gan Ji's disciples sent their wives to plead for his case with Sun Ce's mother and saved him.

Sun Ce told them: "During ancient times, Zhang Jin served as the Governor of Jiao Province yet he abandoned the common teaching, abolished the ancestral customs and laws so he could promote the Tao's evil precepts.

[6] In the novel, Yu Ji wandered around the Jiangdong region, chatting with soldiers and civilians, making everyone believe that he was a magician and healer.

The warlord of Jiangdong, Sun Ce, heard of Yu Ji's magic and grew suspicious of him, thinking that he was casting spells on people.

In the video games Dynasty Warriors 5 and 7, there is a stage based on Sun Ce's confrontation with Yu Ji, a fictional event.

The 1983 Hong Kong film The Weird Man by the Shaw Brothers Studio is loosely based on the story of Yu Ji and Sun Ce.

A fictionalized version of Yu Ji appears as the central antagonist in the 2023 video game Wo Long: Fallen Dynasty.