The zip file nanka-tsukurouyo_Kuronatu_Kuronatu_3329958.zip typically contains the core assets required to use or customize the character:
Because it is a "base" model, there is a large library of third-party clothing and accessories specifically tailored to fit the Kuronatu body type. Kuronatsu (Avatar) - BOOTHPLORER nanka-tsukurouyo_Kuronatu_Kuronatu_3329958.zip
The 3D model data for use in software like Blender. The zip file nanka-tsukurouyo_Kuronatu_Kuronatu_3329958
For direct import into Unity to set up the avatar for VRChat. nanka-tsukurouyo_Kuronatu_Kuronatu_3329958.zip