In layman's terms, this is a story about a beggar who turns into a prince. It mainly tells a series of sad and happy stories about a street boy who was mistaken for the son of a military commander due to some strange combination of circumstances. Through the emotional story and ideological changes of the protagonist Daozi and the military commander's family, and the life journey of finally growing into a qualified soldier, the author strives to show the truth, goodness, and beauty in human nature, and express people's yearning for warm family affection and beautiful love. It is a story written to call for the beauty in human nature.