Previously, Lide had already told Shane that unlike the Divine World, the entrance to the Demon Realm wasn't accessible through facilities like the Temple; instead, it lay at the base of some ancient Magic Power Sources that were over a thousand years old.
Because Omni Potanssen was only cut into three worlds by the Demon King a thousand years ago and was turned into the Divine World, Demon Realm, and Human Realm by the Supreme God, the actual existence of the Demon Realm extends back a mere thousand years.
Therefore, the entrance to the Demon Realm has been situated at the base of some ancient Magic Power Sources that have stood for over a thousand years, and can be activated with the Demon Clan's Token.
Ordinarily, the entrance to the Demon Realm remains closed. It only automatically opens when someone holding a Token approaches the bottom of a Magic Power Source and enters its detection range.
