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The mother, a sanitation worker, made a promise to her son before going to work, but the son lied and went to an Internet cafe. In the evening, the son went home for dinner, but found that his mother had not fulfilled her promise to him. He raised a wooden chair and wanted to smash it, but was stopped by an old woman. Poverty, vulnerability, and the unfortunate emotional experience of a mother and her son at first make people cry! But it turns out that the son is the grandson of the Emperor of Heaven, and he is the little master. His mother-in-law and his father, who is the prince, together with him, performed a tragedy and comedy in the three realms of heaven, earth and man...