In the year 2030, a phenomenon that would change the world forever occurred in the bustling heart of South Korea. A shimmering portal, later known as the Gate, appeared, a swirling mass of energy and light that pulsed with an otherworldly aura. As news of the Gate spread, panic and curiosity swept across the globe. No one knew what lay beyond that threshold, but it was clear that life would never be the same.
Four years have passed since that fateful day. The world has adapted to the existence of the Gate, which has since become a focal point for adventurers, scholars, and those seeking power. The Gate serves as a doorway to dungeons filled with challenges, treasures, and creatures beyond imagination. It beckons those brave enough to enter, promising glory and danger in equal measure.
In this new world, three distinct types of beings coexist. The human race, resilient and resourceful, has taken it upon themselves to explore the dungeons, forming guilds and alliances to face the unknown. Among them are the supernatural beings—oni, spirits, and other mythical entities that have emerged from the depths of the dungeons. These beings, often misunderstood, possess incredible powers and play a crucial role in the unfolding drama of this new era.
Lastly, there are the Guardians that are frozen in time—mysterious entities that once protect the balance between the worlds. They are neither fully human nor entirely supernatural, existing in a realm of their own. The Guardians use to oversee the dungeons, ensuring that chaos does not spill into the human realm. They are the keepers of ancient knowledge and wield powers that can shape the fate of both humans and supernatural beings alike but now they are gone.
As the year 2034 dawns, the world stands on the brink of an unprecedented adventure. Klaus, a young man who was once entirely human, has undergone a remarkable transformation after an incident in a dungeon with his teammates. Now, he embodies the essence of a rare oni—a special race that exists only once. This change has granted him unique abilities, but it also burdens him with the weight of his new identity.
Little does he know, the fate of all three races hangs in the balance, and the choices he makes will echo through time.