Later, Fu Cha, the prince of Wu, prepared a good soldier to avenge his father, but Gou Jian planned to strike first. Finally defeated by well-prepared Fu Cha, Yue was forced to make peace. Fu Cha took Gou Jian and his wife Fan Yi to work in the State of Wu. Gou Jian was handed over to another minister, Wen Zi, but the king of one country became a prisoner of others. The gap in his heart is really big, but he advised Gou Jian to learn patience and harmony. In the face of Fu Cha's difficulties, he didn't even resist, and even let the prince Fu Cha get on the horse. In this way, he spent three years Fu Cha, the prince of Wu, felt that Gou Jian had completely obeyed, so he let him go home.
After returning home, Gou Jian never forgot the humiliation of that year, so he put a piece of gall in his bedroom and tasted it before every meal to remind himself not to forget the painful experience of that year. This also set a great example for future generations and became a spiritual model to inspire future generations to work hard in the face of failure. When Gou Jian, the King of Yue, was in the State of Wu, the State of Yue gradually recovered, and with the help of Fan Yi and Wen Zi, the strength of the State of Yue gradually became stronger, and a series of policies were formulated to attack the State of Wu. In the end, he destroyed Wu and avenged Gou Jian, the king of Yue. But things are not over. Gou Jian, the King of Yue, realized that strength was king because of his humiliating experience in Wu, which led to some psychological distortions. After the war, Yue needed to recuperate. Both Fan Yi and Wen Zi suggested the peaceful development of Gou Jian, the King of Yue, but Gou Jian did not adopt it. Knowing that it could not be realized, Fan Yi chose to remain anonymous and retire to the countryside, but Wen Zi didn't listen to Fan Yi's suggestion and still argued with Gou Jian.