There Was a Cataclysm in the Fairy World, and I Became the Source of Strangeness?

When the seven most powerful men of the human race were fighting against the seven strange kings, Li Yuan silently walked out of the army of monks. Emperor Daoyuan shouted: "Disciple! Go back quickly, it's dangerous here!" Li Yuan innocently spread his hands and stared at the Seven Weird Kings. Then, the Seven Weird Kings all knelt down! "Father!" Afterwards, the strange army and the monks held hands and sang a song... Based on the above article, please briefly explain why twenty-five-year-old Li Yuan became the father of seven strange kings who are more than ten thousand years old, and comment on Li Yuan's shameful behavior of pretending to be a pig and eating a tiger. The topic is selected from the knowledge competition among primary and secondary monks around the world in the first year of the prehistoric calendar. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.