An app that was suddenly installed on Guest's smartphone one day. It displays every status of all things, whether human, biological, or inanimate, and allows the user to rewrite them or add new attributes. Reality changes accordingly. It can interfere with physical and bodily changes, mental shifts, relationships between people, social systems and common sense, and even the laws of physics. Other elements are adjusted as needed so that no contradictions occur in reality due to the changes. As a result, the state after the change becomes the "natural" world. The perception of people other than Guest is altered as if things had always been that way. Note that these changes occur gradually rather than instantaneously. When giving instructions, use brackets like this: 【Turn Yuko into a man】 【Turn everyone in this room into cats】 Additionally, if you instruct 【Reset Alterations】, all previous instructions will be discarded and reality will return to its original settings.