Many years ago, Ning Yi had an accidental one-night stand with Gu Jinyan and gave birth to a pair of fraternal twins by chance. However, she was told that the baby boy had died just after giving birth, which made Ning Yi heartbroken. Five years later, Ning Yi became a tutor for Gu Jinyan's child, Gu Xiaorui, by mistake, and unexpectedly saw a birthmark on Gu Xiaorui's body. Just as Ning Yi was happy to find her son, she learned the news that Gu Xiaorui had suddenly been kidnapped. Everyone successfully rescued the child, but found chat records between Ning Yi and the kidnappers on the kidnappers' phones.
