Use .vroid file in VRoid Studio etc. Import from Model Selection/Open with top left button in program. Edit .vrm file in UniVRM or Unity to add clothing and other assets. Enjoy. Do not reproduce/alter to sell on any market, in any way, shape, or form. Do not claim as your own creation. Do not redistribute in any way, shape, or form. Do not give away. EXCEPTION: You CAN use it in VTubing (even if you earn money by doing it).