The miniaturization and decreasing cost of networking computers, along with the advancement of cloud infrastructure has eased the implementation of IoT products for manufacturers. The increase in such products has led to the rise in IoT devices with information provision function. However, it is difficult to make products display information in consideration of the design on the surface, like daily commodities, since it requires the device to have a wealth of computational resource. In this paper, we propose Virtual IoT System, the approach which adds information-giving functions to the non-computing objects using Mixed Reality technology. This system enables appropriate things to give adequate information at the appropriate timing. In this paper, we explain the detail and design of Virtual IoT System. In addition, we conduct an experiment to evaluate the usability and expressive power of Virtual IoT system.