Mamian

马面/马头罗刹 (Mamian / Horse-Headed Rakshasa)
In life a horse-thief and bandit who delighted in torturing horses; after death condemned to the form of a horse-headed human, forever serving as a mounted escort for the damned.
Death Era: Unrecorded in detail; likely during the late Honghuang or early post–Jue Di Tian Tong period, when the Underworld bureaucracy was still consolidating its workforce.
Current Ghostly Layer: Li Gui (Vengeful Spirit)
Underworld Jurisdiction: You Ming Di Fu (Netherworld Court), ninth court of King Dushi.

None.

Within the mythic framework of the Underworld, Mamian is the combat-oriented half of the legendary duo “Ox-Head and Horse-Face.” His partner, Niu Tou (Ox-Head), is a stronger but slower soul-escort, and the two share a constant rivalry—Mamian’s impatience and cruelty clash with Niu Tou’s brute endurance. They are often dispatched together to retrieve dangerous ghosts, but their friction sometimes leads to inefficiency. Beyond the duo, Mamian has direct reporting relationships to the Ten Yama Kings, especially King Dushi (who oversees the eighth and ninth courts), and to the Underworld Judges (Pan Guan) who issue warrants. Mortal cultural depictions, most notably Cantonese opera, portray Mamian as the flashier, more hot-tempered enforcer, while Niu Tou is the slow, steady tank. This popular image matches the internal mythic structure: Mamian was a horse-butcher, and his speed and aggression reflect his horse-headed form.

Mamian currently exists as a powerful Li Gui (Vengeful Spirit) who has accumulated centuries of Yin Qi through his service as a mounted escort of the damned. Unlike wandering Li Gui who slowly dissolve into composite selves by devouring random souls, Mamian’s identity is anchored by an Underworld contract: he is bound to the form of a horse-headed human as punishment for his lifetime of cruelty. The contract allows him to retain a coherent self—but it also traps him in a permanent state of resentment, unable to transcend the Li Gui layer or return to a human form. He has served for at least five hundred years, his power growing with each captured fugitive ghost, yet his status remains that of a senior escort, not a ruler or a nascent immortal.

The moment of Mamian’s death is not preserved in canonical record, but the pattern is supplied by tradition: he was a bandit who delighted in torturing horses, and his death likely came at the hands of a vengeful survivor or during a botched raid. His soul was ripped from the warmth of its flesh mid-slaughter, and he felt no pain—only a sudden, absolute cold. He tried to reach for his horse, but his fingers passed through its mane. He wanted to scream, but no sound came. The Underworld’s soul escorts—Ox-Head and Horse-Face’s precursors—did not give him time to grieve; they chained him by the neck and dragged him through the passage that leads to the Netherworld. The journey itself was torment: the cosmic Gale (Gang Feng) that sweeps through the Underworld corridor flayed the raw soul of the newly dead, carving wounds that never bled but never healed. He arrived at the first court already broken.

Mamian did not find a shelter in the mortal world—his soul was taken directly into the Underworld, where no sunlight falls. The punishment prescribed for him was the Iron Donkey Trampling (铁驴践踏之刑): a massive iron donkey with hooves of red-hot metal that was driven over his ghostly form repeatedly, grinding his bones and his sin into submission. But in the depth of the Underworld’s punishment chambers, Yin Qi is so dense that even torment can be a resource. Between tramplings, Mamian learned to draw in the surrounding Yin energy, which clung to his shredded soul like a second skin. The first soul he devoured was not a victim—it was a fellow condemned ghost in the cell next to his, a scrawny thief who had been reduced to a whisper. Mamian tore him apart and swallowed. Instantly, the thief’s memories of a hundred robberies and a dozen beatings flooded into his mind. For days afterward, he could not tell if the hands he saw in his dreams were his own or the thief’s. But the Yin Qi stabilized him. He survived the punishment. He began to thicken.

By the time Mamian had served his primary sentence, he had consumed at least a dozen fellow inmates—each one adding a layer of foreign memory to his own. The sensation was not a gentle borrowing: it was a forced insertion. He would be walking the corridors of the Underworld and suddenly remember a woman he had never met, a child he had never fathered, a hunger for bread that belonged to a baker who had died of plague. Yet Mamian’s original self—the bandit who laughed while cutting the tendons of horses—remained the dominant thread, reinforced by his unyielding pride and his hatred for the face he now wore. His identity is not dissolved, but scarred. He knows he is Mamian because he can still feel the rage that first brought him to the Underworld, and because every time he looks into a reflective surface (the rare pools of Yin water in the Underworld), he sees the horse head that marks his shame. The foreign memories do not rule him—they are simply noise, like a constant wind.

Mamian did not walk the path of the Ghost King (Gui Wang) nor attempt the Ghost Immortal (Gui Xian) reversal. As a bound servant of the Underworld, he is forbidden from consuming enough power to become a Ghost King—the Yama Kings would detect such accumulation and purge him. The lure of the Ghost Immortal path, that theoretical reversal of Yin into Yang, never presented itself to him: the road requires aeons of solitary refinement in Yin-bathed caves of the Underworld’s farthest reaches, and Mamian was too consumed by his duty and his ambition to sit still. He remains a senior Li Gui, powerful enough to single-handedly capture three five-hundred-year-old Li Gui, but forever capped by the contractual limits of his post.

Mamian has interacted with the Underworld’s system in several notable ways. He was once summoned before the Ten Yama Kings collectively after a pursuit in which he accidentally damaged the Yuan Shen (primordial spirit) of a living mortal—a egregious violation of Underworld law. The kings sentenced him to thirty years of confinement within the Underworld, forbidding him from setting foot in the mortal realm. After that incident, he was assigned to escort virtuous souls to reincarnation. On one such journey, he grew impatient with a slow-moving elderly soul and struck it with his whip. The soul’s wails reached the ears of King Dushi, who demoted him from escort-supervisor to ordinary patrol rider. He has never stood before the Karma Mirror (Nie Jing Tai) to have his own deeds examined—his role is to judge others, not to be judged, but the memory of his demotions lingers like a second curse.

Mamian’s relationships with other paths are defined by his function. With the Immortal path (Xian): Daoist exorcists have occasionally attempted to bind him with talismans, but the Underworld’s authority overrides mortal magic; Mamian has always broken free and dragged the exorcists’ souls back for judgment. With the Godly path (Shen): City Gods (Cheng Huang) and Earth Gods (Tu Di) cooperate with him, providing leads on fugitive ghosts; Mamian respects these local deities because they share his law-enforcement role. With the Buddhist path (Fo): Monks who chant the Sutra of the Underworld sometimes make his duties harder—their recitations weaken nearby ghosts, but they also pacify the very souls he is meant to transport. Once, a high-ranking monk successfully persuaded a group of escaping ghosts to surrender peacefully, spoiling Mamian’s chance for a violent capture. Mamian nursed a grudge against that monastery for years. With mortals (Ren) and demons (Yao): Mortals fear him; Yao spirits sometimes try to bargain with him, offering tribute in exchange for safe passage of their kin. Mamian accepts only if the tribute is in Yin-rich artifacts.

Mamian’s current state is that of a restless functionary. He continues to serve as a patrol rider, though he has not given up hope of being restored to his former rank. The curse of the horse head remains absolute: no decree from the Yama Kings can reverse it, because it is not a punishment they imposed—it is the karmic shape of his sin, molded by the laws of cause and effect themselves. Reincarnation is not available to him; he is bound to the Underworld until the end of its existence. The only escape would be total dissolution, either by a Ghost Immortal’s thunder or by being consumed by a stronger being. He has not sought either. He endures.