Yang Kang, also known as Wanyan Kang, is the son of Yang Tiexin and Bao Xiruo, the adopted son of Wanyan Honglie, and the young prince of the Zhao Palace of the Kingdom of Jin.In his early years, he studied martial arts from Qiu Chuji, Mei Chaofeng and others.

Yang Kang accidentally participated in a competition organized by Yang Tiexin for his adopted daughter to recruit a bride, and defeated both father and daughter in the competition.But Yang Kang refused to marry Yang Tiexin's adopted daughter and imprisoned the two in his palace.Later, Yang Kang learned his true identity from his mother.After witnessing his biological parents being forced to die, Yang Kang still chose to continue to regard Wanyan Honglie as his father.

While in Lujiazhuang, Yang Kang pretended to promise Guo Jing to take revenge on Wanyan Honglie, but secretly rescued Wanyan Honglie and informed him of Guo Jing's plan.The conversation between the two was heard by Mu Nianci on the side, and Yang Kangsui fell out with Mu Nianci.Later, Yang Kang, Wanyan Honglie and others went to the Forbidden Palace to steal Wu Mu's suicide note.

After Yang Kang came to the Beggar Gang, he falsely reported the death of Hong Qigong and wanted to use the help of the Beggar Gang to get rid of Guo Jing and others. After his plan was exposed, he fled in a hurry.While on Peach Blossom Island, Yang Kang and Ouyang Feng killed the Five Jiangnan Monsters and put the blame on Huang Yaoshi. After being exposed by the stupid aunt, he tried to kill Huang Rong and others to silence them. When they were silenced, Yang Kang accidentally poisoned Huang Rong's armor, and finally died in the Iron Spear Temple.middle.