Does anyone know the allusions about friendship? Tell me

The story of Guan Zhong and Uncle Bao of Qi State during the Warring States Period. They were good friends since childhood. Later, Uncle Bao was under the hands of Duke Heng of Qi and his reputation was very important. However, he still recommended Guan Zhong as the prime minister of Qi State. , the position was above him, and later the two got along very harmoniously. They became brothers, each sacrificed his life and left his name for eternity.

The story of Yang Jiaoai and Zuo Botao is that after they became friends, they went to find a way to become officials together. However, due to poverty, the food and clothing they brought were only enough for one person. The woodcutter had a bleak future. , there is no human habitation within a hundred miles, and the weather is freezing and the ground is snowing heavily. In order to fulfill the brothers, [although they are not real brothers, their sworn love is deeper] Later, Zuo Botao took advantage of Yang Jiao's unpreparedness, exposed his body, and froze to death. Yangjiao Ai wanted to seek his own death, and thought over and over again, not only could he not let down his brother's good intentions, but he would also try to bury him in the future. Later, he became a Zhongdafu in Chu State and told the King of Chu that his rebellious brother had died of cold and exhaustion because of him. The King of Chu was also moved and made Bo Tao a Zhongdafu. Originally, Bo Tao was buried with a generous burial, but Bo Tao was buried next to Jing Ke's tomb. He could not find peace after his death. Yang Jiao Ai first burned paper people and horses, but to no avail. In the end, Yang committed suicide in front of Bo Tao's tomb for his brother's comfort. To accompany my brother. When the King of Chu heard about it, he felt his great righteousness and made him a high official. He built a temple of loyalty and righteousness next to the tomb and erected a stele to commemorate the incident. [Refer to Feng Menglong’s novel].

The Romance of the Three Kingdoms, Liu and Guan. The story of Zhang Taoyuan's three sworn brothers is even more well-known to every household.