For Wei Wuxian, Jin Zixuan's death in front of him was probably the most helpless time in his life, and it frightened him more than meeting a dog when he was a child. Because he had no choice but to give a husband to his senior sister. Therefore, if they could go back and Jin Zixuan knew the future, they would all have different lives.
Idea: If a butterfly flaps its wings, they can have a completely different life