Chen Fei'er, the top-ranked assassin, returns to Longguo to repay Aunt Xue for saving her life and fulfill her engagement to Chu Yifan, the eldest son of the Chu family. On her flight back, Qinglong, disguised as a flight attendant, attempts to charm her, but she turns the tables on him instead. When Qinglong and Zhuque learn of her identity as the Sword Bearer, they are utterly shocked. At the airport, Chen Fei'er rushes to hug Chu Yifan, drawing the furious jealousy of Liu Mengli. On the way home, Chen Fei'er and Liu Mengli argue and even get into a scuffle. Witnessing this, Qi Yunyun, overcome with jealousy, demands an explanation. Unfazed, Chen Fei'er fights back, forcing Qi Yunyun to retreat. Fueled by resentment, Qi Yunyun retaliates by cutting off Linya Group’s supply chain, triggering the wrath of both the company and Chu Yifan’s father. She then tries to claim Chu Yifan for herself, leading to a fierce struggle. In a critical moment, Qinglong intervenes, defusing the crisis. Unwilling to give up, Qi Yunyun gathers allies to take Chen Fei'er down, hoping to eliminate her and marry Chu Yifan. However, Chen Fei'er, now an unstoppable force in Longguo, easily dismantles Qi Yunyun’s schemes. In the end, she crushes her enemies, drives them out of the country, and finally finds happiness with Chu Yifan.