sorry, it's my negligence. Usually when the model is created, I will adjust the model for a long time, including its hairstyle. However, the hair var has already been released. So, if you don't have this model and just download my hair package, you won't get the effect shown in the picture. Because it's in the hairstyle settings of this model.
So I made a separate VaR for this hairstyle. Available for download. You can use it at will.