Infinite Choice System Starting from Douluo

Why do the protagonists of all worlds have a common boss, and why do the heroines of all worlds have a common husband? Why are villains from all over the world frequently beaten? This is the story of a boy from the earth: Wang Hao, who fights against Tiandao, takes in ten thousand girls, and takes in his younger brother. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.