The Separate-Dimensional Wall is a place located in the border between dimensions. If a person enters that place, he cannot get out and will slowly be forgotten by those who know him and then disappear, along with the rest of the dimension he originally comes from. The only way to get out is to open the dimension portal and allow the person to return. Once that person enters, everything he sees will represent his home and the people that he knows, but in the form of illusion, or more like filming stage. This place is only accessible if the person gets struck by enormous energy and if the gateway to other dimensions is closed.