Are magical fields created through a bounded network of strings spread across an environment to create a mystical boundary line that separates the space within from the outside world. This technique separates the energies of yin and yang in order to project a measure of ones own inner world; in essence a localized pocket dimension. These boundaries are fields of space enclosed from reality, but as the world serves as the template, they mimic the environment they are created in. However since this is a pocket dimension, structural damage dealt within the field disappears upon dismissal of the field, similarly, changes in the surrounding reality do not affect the area within the field, nor do changes in the field affect the surrounding reality. By erecting such fields, the Ura-Fuuchouin are able to harness and greatly empower their own abilities within the confines of these fields. The size of the bounded field is directly proportional to user’s prowess.