A proposition is to provide a wearable display suitable for enjoying contents including {HEAD ~ images} by {TAIL ~ plural users} simultaneously 
A proposition is to provide a wearable display suitable for enjoying contents including { HEAD ~ images } by { TAIL ~ plural users } simultaneously
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH