The real world that we live in is full of information, and various kinds of recorded information were collected and kept in the specific place such as a library and a university. Therefore, we had to go to these storage places to obtain various kinds of information. However, recently, this traditional style collapses greatly due to the digitization of the information and the diffusion of the computer network. The renewal speed of the information was greatly raised by the digitization of the information, and communication to the information rose greatly by the computer network system. The information that it was collected and kept changed to the information that it was dispersed and renewed. This information that it was dispersed became one huge information system connected complicatedly by the hyper-link structure. Each information is brought by the producer of each information that it was independent. Even if the change of each information is very small, this huge information system sometimes functions just like an autonomous system. Though this information system sometimes exerts big effect on the spread toward the various fields, The control mechanism of this information system doesn't exist. This information system already unites in the various systems which have supported our life. Based on the development of the research of virtual reality, this huge information system unites with real space. This thing means that we can access various kinds of information easily, and also means that the space that we exist in, and ourselves become information systems. The problem of whether such a new information environment brings what kind of change to our life isn't clear yet. However, this new information environment has the possibility that our information environment is changed fundamentally. We must do the control of this information system in the information environment for maintaining a comfortable information environment for ourselves. "A battle with the information system in the information environment": This is our theme in this virtual installation. We made this work as metaphor of this theme. The information that can't be seen in the eyes which exist in the information environment is expressed as the sound source which exists on the virtual three-dimensional space. The various sound sources build the music space that is characteristic in "A-X-E-S." A user can enlarge volume by approaching the sound source, and make volume small by going away from the sound source. Base on these kinds of spatial movements, the user can change the sound environments. The sound source makes condition change by being touched by a user. Based on these activities, A user looks for the most suitable sound space for itself, and continues the control of the sound space that keeps changing just like an autonomous system. In other words, a user continues the battle without an end with his surrounding information environment.