Wealthy student Xie Yanci had his financial supply suspended by his father for illegally street racing. To subsidize his expenses, he worked part-time while taking care of his younger sister, Wen Shuyu. This scene was witnessed by Shen Rou, causing a misunderstanding. Believing Xie Yanci's behavior was inappropriate, she stepped forward to reject the order and contacted a teacher to organize an apology meeting. At the apology meeting, Xie Yanci pulled out a medal to explain the situation, clarifying that Wen Shuyu was his biological sister and pointing out that Shen Rou had jumped to conclusions without checking the facts. As the siblings' identities were made public, the truth behind previous fake text messages, privacy leaks, and malicious framing also gradually came to light.