Did Dandan die for double suicide, or because of "hidden rules" and despair, or even because he was a mistress? After the incident, in the eyes of Dandan's grandfather, mother, stepfather and other family members, Dandan was "hidden" by Chen Mou. Finally, Chen Mou tricked Dandan into committing suicide because he could not fulfill his promise. The reason is that they committed suicide together, but Dandan died, but Chen Mou was still alive.

Li, her stepfather, said that only 50% of the future flight attendants (reserve flight attendants) who participated in the training may become official flight attendants. I don't know if Chen Weizhong used this as bait to seduce or threaten Dandan. However, Wei, her mother, said that she had told Dandan countless times that she could get a good job and a good flight, and even be transferred to her hometown of Shenyang through his relationship in Shenzhen Airlines. "He also means that if you don't associate with me, I also have the ability to arrange a bad job and a bad flight for you. Although I don't know whether Chen Weizhong really has such great power in Shenzhen Airlines, it must be a great psychological pressure for a little girl who has just entered the society and has no social experience and life experience. " Wei Xuejing said.

Apart from grief, Wei also expressed the hope that NPC could legislate to crack down on "hidden rules". She said that Dandan's death is not a special case. In a place where airlines are prone to power and money transactions, it is necessary and obligatory for the National People's Congress Standing Committee (NPCSC) to prevent and stop "hidden rules" by legislation. Wei said that she hoped that the judicial authorities could investigate Chen Mou's criminal responsibility, and at the same time asked Shenzhen Airlines to bear the responsibility of improper employment.