We all know the origin of cola. She was originally a genetically modified person who was born after experiments with China's genes and German's genes. Because the experiment failed, except for coke, the same batch of genetically modified people died of genetic defects.
Coca-Cola's mother, Zhang Jiawen, is a researcher in Sterling. She is in charge of this genetic experiment. After the failure, the coke that should have been erased did not die.
Seeing this dying little life, Zhang Jiawen may regret doing this experiment, so he smuggled coke out of the country and chose to settle in Chicken Island. After hiding for more than ten years, coke has been in poor health since childhood. Later, he was diagnosed with cancer, and then Zhang Jiawen disappeared. However, we know nothing about Coke's father, and we don't even know if she has a father.