First, I will explain “”Augmented reality (AR)”” and “”Virtual reality (VR)””. Augmented reality (AR) is “”technology for adding virtual worlds to the real world”” and so on. It refers to the technology to show the super reality world with elements of the virtual world added to the real world. Virtual reality (VR) is “”technology for replacing real world with virtual world””. It refers to the complete virtual world, technology to show the world of dreams. Based on that, the midfielder of AR and VR is “”mixed reality””. It is also called “”MR”” omitting “”Mixed Reality””. MR is a technology to blend the real world and the virtual world by adding elements of the virtual world to the real world beyond AR or vice versa by reflecting the elements of the real world. That is, “”technology to show half the world of dreams””.