Ji Bu was a native of Chu State in the late Qin Dynasty. He liked to make friends when he was young, and he was loyal and trustworthy. When he promises anyone, he will try his best to do it. Lu Bu's quality of keeping his word won him a reputation among his peers. Later, his reputation became more and more famous, and even many rangers in the north knew it, so that there was a saying among the people: "It is better to get a hundred pounds of gold than to keep a promise."
Li Kuchan is a famous contemporary painter in China. He is very straightforward. He never breaks his promise to paint for others. Once, an old friend asked him to draw a picture, and Li Kuchan readily agreed. Helpless, Li Kuchan failed to finish the painting in time for some reasons. Soon after, he received the obituary of his deceased, and was ashamed. He rushed to draw a picture, drew a "Lotus", solemnly engraved the name of his deceased, stamped it, immediately took it to the backyard, stood still and burned it. Afterwards, Li Kuchan also said to his son, "If there are old friends who want to paint in the future, you should hurry me in time and don't break your word!"