One day, Lv Buwei, a big businessman, came to Handan, the capital of Zhao State to do business, and happened to meet a strange son in the street. At that time, my son was miserable and no one could see his value. Only Lv Buwei has a good eye for pearls and thinks that they are "rare commodities in life". So he spent a lot of money making friends with strangers, going to high-end hotels with him every day and giving him countless treasures. Mark never thought that anyone would care about and value himself so much, and soon became friends with Lv Buwei.
Lv Buwei also spent a lot of money bribing Mrs. Huayang to put in a good word in front of her husband, King Qin Zhao, and made the son a prince. Lv Buwei also said to Mrs. Huayang, "None of you found the benefits of childe's association with strange people. In fact, this child is the most talented and virtuous of all the sons. He is clever and kind, and has made many heroes. He is still a dutiful son. Although you are not his real mother, he has been thinking about you in Zhao. You don't have your own son. What can you do when you lose the favor of the monarch? " Mrs Huayang was very moved. Lv Buwei sent so many gold, silver and jewels that people had short hands. She kept putting in a good word for strangers in front of Qin, and gradually felt that the child was really good, so she took him back to Qin and made him a prince. Lv Buwei changed the stranger's name to "Zi Chu". After the death of Zhao Haoqi, King of Qin, the Prince succeeded to the throne, and Lv Buwei realized his wish to help establish a monarch.