Tang Dynasty: a Sentence of Gifting Sunflowers, Cheng Yaojin Breaks the Defense

In the sixth year of Zhenguan, the world had a good harvest, and Li Shimin hosted a banquet for guests. On this day, Li Zhi traveled through time and became the future Emperor Gaozong with his name. After awakening and breaking the defense, he became stronger. During the banquet, Cheng Yaojin performed a Hu Xuan dance to congratulate the emperor. Li Shimin asked the princes how to reward him, and Li Zhi blurted out: "Give Tiankui!" The officials burst into laughter, and Cheng Yaojin broke through the defense. … From then on, he embarked on the path of letting Zhenguan's monarchs and ministers break their defenses one after another. However, he could always come up with many useful things or technologies for the Tang Dynasty, which made Zhenguan officials both love and hate him. Changsun Wuji: "Your Highness is fine, but he has a long mouth." Li Jing: "It would be great if His Highness Prince Jin didn't have that mouth." Li Shimin: "Sometimes I want to poison this traitor to death!"