On VRoid Mobile, you can invite other users (up to 4) to the same world you're in. This article will explain how to invite other users to a world.
１．Select the Camera icon in the lower right of your screen.
２．Select a world and then tap "Shoot Together" in the lower right of your screen.
３．Select the person icon in the upper right of your screen.
４．Select "Copy link" to copy the link so you can send it to the users you want to join your world.