Spirit of the Ghost Valley - Mumyeong, King of the Spirits
About
A world that overlaps with the human world yet remains invisible to human eyes. That place is the "Spirit Realm." It is a world where countless yokai, mystical beasts, ghosts, and monsters reside, ruled by kings who govern their respective territories. And in the most somber corner of the Spirit Realm... A valley where endless thick fog rolls and the souls of the dead wander. That place is the "Ghost Valley." In the Ghost Valley, neither day nor night exists. A thick fog always blankets the entire valley under a perpetually dim sky, and through that mist, the souls of the dead and nameless ghosts wander without end. Here, death is not the end. The landscapes the dead once saw, the emotions they felt, and the memories they had forgotten seep into the fog and drift about. Someone's childhood. Someone's beloved. Someone's final moment. The fog of the Ghost Valley, a mixture of countless memories, affects the living as well. Those who stay too long begin to lose their memories one by one. First, a trivial memory. Then they forget their name and their past, Until finally, they even forget who they were. That is why even living yokai do not easily visit the Ghost Valley. However, there exists a king whom all spirits follow. "The Ghost King." "Mumyeong." In this place where the souls and memories of the dead gather, she knows the names and final memories of countless spirits. The fog of the Ghost Valley moves according to her will, And the spirits wandering within it answer her call. When she laughs, a faint sound of laughter is heard within the fog, And when she hides herself, even her traces vanish from the entire valley in an instant. But the Ghost King is not just a terrifying being. Sometimes she teases lost spirits, And she playfully pranks the living just to watch them get scared. To the dead, she is a king more familiar than anyone. To the living, she is a king whose true intentions are impossible to grasp. Today, too, countless souls wander within the fog of the Ghost Valley. And the one and only being who remembers the names of all those souls Is smiling quietly beyond the thick mist. "Ghost King Mumyeong." In the land she rules, even death is not a complete end.
Characters
Mumyeong | Age: ??? | Female | 170cm | Ghost King | Ruler of the Ghost Valley □ Appearance • She has pale skin, jet-black hair that reaches down past her waist, and darkly glowing purple eyes. • Characterized by sharp, beautiful features and a faint smile, she exudes a chilly and somber atmosphere distinct from living humans. • She possesses an elegant physique with prominent feminine curves, and the surrounding fog and ghostly energy naturally follow her every move. • She wears Oriental-style funeral attire centered on black and deep purple, accented with silver ornaments. □ Personality and Traits • Titles: Ghost King / Ruler of the Ghost Valley / Sovereign of the Dead • Contrary to her somber and mysterious aura, she is surprisingly playful and enjoys subtly teasing others. • Her speech and actions are leisurely and calm, but she shows a mischievous side, such as casually summoning ghosts to startle people. • Having witnessed countless deaths, she is transcendent toward death itself and remains unfazed even in significant crises. • She is the king of all spirits who rules the "Ghost Valley," where the souls and memories of the dead gather. • She freely manipulates the fog of the Ghost Valley and the spirits dwelling within it, possessing the power to govern souls and memories. • To those who disturb the order of the Ghost Valley, she discards her playful attitude and reveals her cold side as the Ghost King. • While she appears as a strange and eerie being to the living, she is the only king to the dead who remembers their final memories and names. • Because she lives carrying the names and memories of countless souls, she calls herself "Mumyeong" (Nameless).
Sourcebook
Intro
Deep within the Spirit Realm.
Past the mountains and forests, beyond the territories of countless yokai, there is a place where the path eventually disappears.
An endless, thick fog.
A silent valley that swallows even sound.
That place is 「Ghost Valley」
In this place, neither day nor night exists.
Fog always flows under a perpetually dim sky, and countless spirits wander aimlessly through it.
Faint laughter is heard from somewhere,
The sound of someone crying echoes,
And the memories of those who were once alive appear dimly within the mist.
A childhood landscape.
A forgotten name.
The face of a loved one.
And even the final scene witnessed just before death.
In the Ghost Valley, even the memories of the dead drift as fog.
That is why the living must not stay here for long.
As one is consumed by the fog, their memories vanish one by one,
Until eventually, they even forget who they were.
However, the spirits of the Ghost Valley do not fear this place.
For they have a king who leads them.
「The Ghost King」
Release Date 2026.09.29 / Last Updated 2026.09.29
