This paper describes a case study of VR platform Magic Mirror and its applications that are economic in development process and cost, flexible by contents and installation conditions, and that has business potential for consumer market. Magic Mirror uses video based virtual world and tangible interaction by motion tracking. Magic Mirror platform enables a user to monitor their action and to collaborate with other users of remote place within attractive interaction feedback. Magic Mirror system gives serious distance learning experience with tutoring and group collaboration. They are presented in public exhibitions and tested by exhibition visitors. They showed application potential of Magic Mirror platform in interactive game, distance learning, and entertainment field. Categories and Subject Descriptors C.C.3 [Special-Purpose and Application-based Systems]: a case study of VR platform Magic Mirror and its applications. General Terms Design, Human Factors Keywords VR, Tangible Interfa...