The upper three layers of the Nine Netherworld are called 'Evil Spirits', the middle three layers are called 'Ghosts', and the lower three layers are 'Ghost Gods'.
The weakest are 'Wandering Souls', which can only create illusions to scare people, without much lethal power.
Updates will be added based on progress, numbers in parentheses indicate the chapter appearance
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[Suicide Rope] Evil Spirit, its form is of a hanged person, the killing rule is to have suicidal thoughts and to look directly at the face of the corpse under the rope (2, 3)
[Corpse Mud Evil] Evil Spirit, appears in the fields during spring plowing, not yet detailed (7)
[Wheat Evil] Evil Spirit, appears in the wheat fields during summer harvest, contagious through direct contact, wheat awns grow from the body until the person painfully dies (22)
[Corpse Nest] Corpse-type Evil Spirit, mostly a big-bellied old man walking in the wilderness, filled with corpse worms, which invade both the bodies underground and the living on the surface, turning them into walking corpses, nurturing more corpse worms (7, 68)
[Divine Concealment] A special existence, causing the disappearance of the Liu Family's third son from Black Mountain Village, forgotten by everyone, caused by the mutation of the old locust tree in Liu Family's courtyard (7, 61)
[Child's Rhyme Curse] A special existence, a type of curse, not yet detailed, currently appearing in Black Mountain Village at Skinny's house, manifested as an old woman always humming strange children's rhymes (7, 16, 58)
[Village Ghost] Ghost, each village, when registered with the government, receives a document from the Evil Suppression Bureau, writing down the names of all eighteen-year-olds in the village and imprinting it with a bloody handprint. When facing irresistible Evil Ghosts and the Evil Suppression Bureau is late in aid, the village leader can sacrifice his own Life Soul to request the village ghost for help. The village ghost then extracts half of the Life Souls from the document at random as payment, with at least twenty souls required (7, 64)
[Earth Ghost] Ghost, appearing in the form of a shen kan in the mountains and wilderness, those with no way out can make wishes to the Earth Ghost, but must fulfill the promised price afterward, or be endlessly haunted by the Earth Ghost (7, 16, 121 details included)
[Water Ghost] Ghost, residing in lakes, water ghost's rule is to claim lives through water contact, stepping in puddles on rainy days will lead to being pulled in by the Water Ghost, those killed by it seek replacements (15)
[Skinning Master] Evil Spirit, on the ninety-fifth step of the Nine Netherworld's second layer, an Evil Spirit controlled by Yan Daozi, killing rule includes skinning upon touch, requiring satisfaction with the skin of young girls after each summon (24)
[Butcher] Evil Spirit, Black Mountain Village's Fatty Pork Shop owner, committed suicide after the dismemberment case, killing rule is everyone stepping into the pork shop is hunted by the Butcher (34, 37, 41)
[July Photography Studio] Located in Xujiawan Village, anyone taking photos inside or outside will disappear (38, 39)
[Skywell Building] Located in Xujiawan Village, main site of village resentment, gathering a large number of resentful spirits, actions must comply with tenant rules (42~51)
[Village Resentment] Evil Spirit, a small Evil God brought back by two brothers from the Brother Watch Shop from the Southern Ocean, worshipped in-store for wealth, causing mutations due to Xujiawan Village's unique location, capable of manipulating human grievances, feeding on them, and absorbing past memories to reset itself (50)
[Ghost Flower Carriage Marriage] Ghost, randomly appearing at the entrance of a village, stopping for three nights, leaves after an unmarried girl is offered within three days, otherwise takes away all village girls on the third night (68)
[Ghost Coffin, Life-saving Money] Curse, scattered paper money on the ground and gold and silver ornaments transformed by the paper money, picking them up means selling your life to ghosts, marked by coffin-carrying ghosts, will be seized and stuffed into a coffin within seven days. To break it, make someone willingly take the life-saving money from you, transferring the curse (72)
[Yin Soldiers Crossing] Ghost, appearing in large numbers during the Mid-Autumn Festival, depicted as an army marching in haste, capturing young adults randomly for conscription, regardless of gender, leaving food offerings in the courtyard might spare from conscription, when encountering outdoors, must kneel, not look around, and leave the rest to fate (72)
[Forest Evil] Evil Spirit, calling someone's full name in the forest will result in being remembered and haunted by the Forest Evil, who demands your life. As long as you don't look back or respond after being called, walking into sunlight or returning home means safety (72)
[Nie God] Ghost God, worshipped by the Ming Family for generations, providing important materials for brewing Jade Liquid by the Ming Family (83)
[Play with me~] Curse, five children chanting 'play with me', upon seeing or hearing them, brings constant harassment, but before killing, the children give a chance. Pointing a finger to substitute oneself ensures escape, with the pointed person uncontrollably committing suicide, pointing to the perpetrator before dying (85, 86)
[Ming Mansion Monster] Evil Spirit, a woman with pale, rotting body with growing branches, wandering and killing in the Ming Mansion (85)
[Golden Child] Object cultivated through Southern Magic for wealth, requiring the sacrifice of girls (107)
[Zombie] Corpse-type, divided into White-haired Zombie, Black Zombie, Jumping Zombie, detailed levels and corresponding abilities can be found in chapter 110
[Qingjiang Envoy, Suoweng] Ghost, worshipped by fishermen for safety (123)
[Fish Woman] Ghost, half-fish, half-human, can resurrect the dead (131)
[Corpse Recovery Man] Evil Spirit, operated by Qin Ze from the Evil Suppression Bureau, with three rules, detailed in chapter 127
[Hungry Evil] Evil Spirit, begging for food, causing illness in others (148)
[Dream Ghost] Ghost, able to draw people into dreams, dying in a dream means dying in reality (149)
[Sickness Ghost] Ghost, hearing the coughing of the Sickness Ghost means instant death, sound blocking can save a person (152)
[Blood Robe Evil] Three-layered Evil Spirit, a blood-stained robe, attacks from behind, drains blood, staring at the Blood Robe makes it disappear, so it only attacks lone individuals in the wild (155)
[Thousand-faced Ghost] Nearing the fourth layer Evil Spirit, controlled by Hua Qianmian, allows her to possess many faces and identities (168~171)
[Gambling Ghost] Fourth layer Ghost, involved in Wangshan City's gambling ghost incident, a gambler instructed to become a gambling ghost, killing through deadly games, with the loser dying first among relatives then oneself, outside the gambling den, the Gambling Ghost kills as per the entry list, contact equals death (161~171)
[Curse Ghost] Tier unknown, cursed individuals tormented by the Curse Ghost at night (185)
[Dream Ghost] Above the sixth layer, the Curse Ghost attracts the Dream Ghost, which parasitizes individuals having nightmares, dragging nearby people into the dream, dying in the dream results in real death (221)
[Dragon and Snake Child] Ghost worshipped by the Yunzhou Tribe, brings illness and natural disasters (204)
[Zhuangyuan Ghost] Fifth layer, a ghost controlled by General Cao's Yin Walking General in Wangshan City, possessing an Ink-Wash Ghost Realm, transforming people and objects into painted forms (228)