Just after giving birth to her daughter, Song Shixue was abandoned by her boyfriend Huo Xiaochu. It was Meng Qianxun who came to her side, taking care of Song Shixue and her daughter for twenty years without a single complaint or expectation of reward. However, twenty years of care did not earn even a shred of gratitude from Song Shixue and her daughter, who instead mocked the mother and daughter pair. Meng Qianxun never minded, because he was about to leave this world and return to his own true wife and children. Yet upon learning that Meng Qianxun had left, Song Shixue and her daughter went crazy searching for him.