According to the plot of "Douro Continent", Shrek is one of the eight eccentrics of four generations, ranking third in age, nicknamed Shura with a Thousand Hands (later promoted to the title of Douro), Tang Hao with a vast sky, and the son of Ayin, a centenarian blue silver emperor. After jumping off the cliff, he crossed Douro continent, and then established Tangmen in Douro continent.
Ranking is a reflection of the objective strength of related similar things, with the nature of mutual comparison.