The eight-year-old emperor overheard my thoughts

The protagonist, Ye Tianci, is reborn into the Great Qian Dynasty, becoming the Prime Minister, second only to the Emperor. He awakens a system that allows him to return to modern society whenever the Empress and Empress Dowager deem him a traitor. Thus, Ye Tianci embarks on the path of a ""traitor."" To this end, Ye Tianci deliberately coerces the eight-year-old Empress, infuriating the entire court. However, the Empress Dowager and Empress Dowager can hear Ye Tianci's inner thoughts. From these thoughts, they understand that if Ye Tianci dies, the Prince of Yan and other vassal kings will surely rebel. Therefore, for the sake of the Great Qian Dynasty, the Empress Dowager chooses to play along, not only making the Empress address Ye Tianci as ""Prime Minister Father,"" but also... They obeyed Ye Tianci in everything. Faced with the Prince of Yan's wolfish ambitions, the Empress Dowager and the Empress chose to side with Ye Tianci, causing him to fail once again. When Ye Tianci returned home after court, he discovered that the person who poisoned him was the Empress Dowager. However, Ye Tianci did not intend to pursue the matter, as he only wanted to return to the modern world. Unexpectedly, the Empress Dowager personally came to his door, pleading guilty. Ultimately, the two realized they had both fallen into the Prince of Yan's trap and prepared to join forces against him. Unexpectedly, the Empress Dowager was deeply poisoned. Looking at the Empress Dowager, who was confused and delirious, Ye Tianci chose the answer in his heart—to save the Empress Dowager and help her eliminate the threat posed by the Prince of Yan.

Synopsis from DramaGo.