Like the picture above, it is the model of Offcial_IA_MMD_Model. I used the mmd-tools adons to import it. The model contains physics simulations;mostly related to the skirt and the hair.
The setting I did to export the model as .FBX is the picture above.
I dragged the exported file in Unity but, it seems there is something wrong with the model. I think it may be displaying object related to the physical simulation. How to import the model like the first picture which contain the physical simulation without anything unneeded?