In the deepest part of the demonic realm, where the demonic energy is most concentrated, lies the Demon Cavern...

At this moment, outside the Demon Cavern, countless Demon Clan powerhouses were gathered, each one staring fervently at the black vortex ahead.

The Demon Cavern is the source of demonic energy in the demonic realm. To prevent the energy from leaking out, the first Demon Lord set up layers of seals outside the cavern, known only to each generation's Demon Lord...

The Demon Cavern opens once every hundred years, and every time the Demon Clan powerhouses enter and emerge, their strength increases significantly. It's common for Saint-level powerhouses to break through to God-level within the cavern...