Xu Ci, who returned from overseas, accidentally walked into the Lin Group's press conference due to a navigation error. Lin Wanqing, the group's helmsman, lied about being her fiancé to resolve the crisis. Later, she was forced to sign a two-year contract marriage and became the Lin family's son-in-law. Not only did he have to face the cold looks and ridicule of wealthy families, he was also secretly monitored by a mysterious organization because of his "Eye of Communication". He struggled with Mandarin, but he awakened his pupil of speaking in crisis after crisis, unlocked the ability to speak multiple languages, and saw through conspiracies and traps. He successively resolved crises such as the Nanyang Business War and the frame-up of his cousin, and gradually gained a foothold in the Lin family. As the Pupil of Tongyu continues to advance, he discovers that his amnesia is closely related to the mysterious Code Word organization. The protection and competition surrounding the Pupil of Tongyu officially begins amid the disputes between wealthy families and organizational conspiracies.
