Qin II was very cruel, and in order to maintain his rule, he almost slaughtered all the people who were related to him. The word "almost" is used because the baby survived.

So why did Qin II leave his life behind?
In order to keep the throne, Hu Hai gave Fu Su death as quickly as possible. He was so fierce to Fu Su, naturally it was impossible to spare Fu Su's son, and since Hu Hai did not kill the baby, it meant that the baby might not be Fu Su's son at all.
In fact, there are only ambiguous descriptions in the history books, and the relationship between the two is not pointed out. Zi Bao is Fu Su's younger brother, which is the most widely circulated, but it does not mean that this statement is not problematic.
According to the Records of History, Gao Zizhi Tianfuhe and the group minister Fu Xu were summoned by the first emperor's brother and conferred the seal. The baby is in place.
Here it is said that Zhao Gao raised the child to the throne after Hu Hai's death, and at the same time pointed out the identity of the child, that is, the younger brother of Qin Shi Huang.
Some people think that this is Zhao Gao's one-sided words, but let's not forget that it is easy to pretend to be the son of Qin Shi Huang, but it is even more difficult to pretend to be the younger brother of Qin Shi Huang. Many of the courtiers were unaccustomed to Zhao Gao, but they did not use this to refute his embrace of the child as king, indicating that the identity of the child was genuine.
Moreover, Zhao Gao dared to embrace the child, indicating that the child and the child had nothing to do with Fu Su. You know, Zhao Gao is the culprit who killed Fu Su, and he embraces the child, which means that there is definitely no father-son relationship between the child and the child and The Fu Su. Moreover, Hu Hai actually has some respect for the child, which shows that the identity of the child is not ordinary.
Many people feel that Qin Shi Huang's younger brother seems to be more threatening than Qin Shi Huang's children. However, according to the system of primogeniture, Yingzheng's younger brother was only a noble status, and he himself had no right to compete for the throne. The reason why Zhao Gao was able to support the child was because The descendants of Yingzheng had already died and were injured.
In order to maintain the order of the imperial court, the group of subjects could only recognize the status of children and babies. This matter can be said to be half hammered, otherwise no one can explain why the baby can easily ascend to the position.
Of course, there is a lot of evidence to testify to the above point. Hu Hai prepares to kill Meng Yi, and the baby comes out at this time to dissuade him.
He also said that those who kill loyal subjects and have no discipline are those who do not believe in the inner group of ministers and alienate the intentions of the disciples outside, and the ministers think that they cannot do it.
Although Zi Bao was doing something against Hu Hai, his starting point was to consolidate Hu Hai's rule. You know, Hu Hai just killed Fu Su, and at this time the baby came out to offer advice, indicating that he and Fu Su should have no relationship.
Although Hu Hai did not adopt the practice of the child, he also understood through this matter that the child should support himself, so he did not persecute the child.
Next, we can switch to Hu Hai's perspective. If Zi Bao was Fu Su's son and had dissuaded his decisions, then Hu Hai should have been very jealous of him and then found an opportunity to kill him.
But surprisingly, Hu Hai did not do so. If the child is the younger brother of Qin Shi Huang, then all this can make sense. Hu Hai did not kill children and babies, not because he did not want to, but because he did not dare, after all, slaughtering his uncle was much more serious than slaughtering his own brothers and sisters.