In this demonstration, we propose a method of movement in virtual space. The user becomes a ball that can roll through the virtual space and is operated from a first-person perspective. There are several objects in virtual space, which correspond to miniature objects in real space that match their appearance and movement. Users could manipulate these real space objects themselves, lifting and moving themselves in virtual space to break through some of the barriers that exist in virtual space. In this method, we observed that users experienced less motion sickness, even though they were standing still in the real space and only the images were moving. This system enables users to interact themselves from real space to virtual space, and is expected to become a new method of interaction in a society where digital twins have become widespread.