EP 1–8 1 connection
Also known as: Gu-cheon, Spirit Slayer, Ghost Slayer, Buddhist Spirit Slayer
Affiliations
Secret Curse Investigation TeamSpirit SlayerGu Cheon's Spirit-Slaying LineageSpirit Slayer and Disciple
Gu Cheon is an irreverent spirit slayer who can cross between the living world and the Realm of Gwi and cut down hostile spirits. Haunted by guilt surrounding his mother's death, he initially avoids responsibility and resents being forced into royal service. His partnership with Saeng Gang gradually gives him a reason to protect others despite the supernatural cost.
Connections
MonkSpirit-Slaying Mentor
EP 1–8 1 connection
Affiliations
Royal KingdomHidden Royal DaughterRoyal FamilyHidden PrincessRoyal CourtCourt Lady and Secret Royal InvestigatorSecret Curse Investigation TeamSpirit Listener and Court Liaison
Connections
Ji YulPalace Confidantes
EP 1–8 3 connections
Affiliations
Royal KingdomKingRoyal FamilyFamily Head and KingRoyal CourtKingSecret Curse Investigation TeamCommissioning Authority
Connections
Chief Eunuch KimKing / Chief EunuchQueenRoyal MarriageConcubine YoonKing / Royal Concubine
Dead EP 1–8 No mapped connections
Affiliations
Royal KingdomFormer Crown PrinceFormerRoyal FamilyDeceased Crown PrinceFormerRoyal CourtFormer Crown PrinceFormer
EP 1–8 No mapped connections
Affiliations
Royal KingdomQueen DowagerRoyal FamilyRoyal MatriarchRoyal CourtQueen DowagerQueen Dowager's FactionFaction Leader
EP 1–8 1 connection
Affiliations
Royal KingdomRoyal Consort and King's MotherRoyal FamilyKing's MotherRoyal CourtRoyal Consort
Connections
QueenKing's Mother / Queen
EP 2–8 No mapped connections
Affiliations
Royal KingdomRoyal PrinceRoyal FamilyCollateral Royal PrinceRoyal CourtRoyal PrinceQueen Dowager's FactionPolitical AllyFormerIk Sang's FactionFaction Leader and Royal Claimant
Dead EP 2–8 No mapped connections
Affiliations
Royal CourtPalace ShamanFormerQueen Dowager's FactionFavored ShamanFormerIk Sang's FactionShaman and Secret OperativeFormer
Dead EP 1–4 No mapped connections
Affiliations
Royal KingdomRoyal PrinceFormerRoyal FamilyRoyal PrinceFormerRoyal CourtRoyal PrinceFormer
Dead EP 2–4 No mapped connections
Affiliations
Royal CourtFormer Favored Court LadyFormer
Dead EP 1–7 No mapped connections
Affiliations
Royal KingdomFormer Royal ConcubineFormerRoyal FamilyFormer Royal Concubine and Saeng Gang's MotherFormerRoyal CourtFormer Royal ConcubineFormer
EP 4–8 No mapped connections
Affiliations
Royal KingdomCollateral Royal Prince and Alternative HeirRoyal FamilyCollateral Prince and Alternative HeirRoyal CourtAlternative Heir and Crown Prince CandidateQueen Dowager's FactionSponsored Alternative HeirFormerIk Sang's FactionIntended Heir and Unwitting BeneficiaryUnknown
EP 2–8 No mapped connections
EP 1–8 1 connection
Affiliations
Royal CourtChief EunuchSecret Curse Investigation TeamRoyal Support
Connections
KingKing / Chief Eunuch
Unknown EP 2–4 No mapped connections
Affiliations
Royal CourtSenior Court LadyQueen Dowager's FactionSenior Attendant and Secret Keeper
Dead EP 3–3 No mapped connections
Affiliations
Royal CourtRoyal GuardFormerPalace GuardRoyal GuardFormer
Dead EP 3–4 No mapped connections
EP 1–8 2 connections
Also known as: The Queen, Queen Consort
Affiliations
Royal KingdomQueen ConsortRoyal FamilyQueen ConsortRoyal CourtQueen Consort
The Queen Consort is King Ju Sang's wife and the senior consort of the reigning royal household. She is caught inside the succession crisis as the king's sons die and competing branches seek control of the throne. The drama gives limited independent detail about her personal ambitions or history.
Connections
KingRoyal MarriageChoi Suk BinKing's Mother / Queen
1 connection
Affiliations
Royal CourtCourt LadySecret Curse Investigation TeamSupporting Court Attendant
Connections
Saeng GangPalace Confidantes
EP 1–1 1 connection
Also known as: Gu Cheon's Mentor, Elder Monk, Buddhist Monk
Affiliations
Gu Cheon's Spirit-Slaying LineageSenior Practitioner and Mentor
The Monk is an elderly spiritual practitioner who previously helped the palace during the first outbreak of supernatural deaths. Unable to return himself, he identifies Gu Cheon as the person capable of entering the Realm of Gwi and fighting the renewed curse. His recommendation directly causes Gu Cheon's recruitment.
Connections
Gu CheonSpirit-Slaying Mentor
1 connection
Also known as: Royal Consort Yoon, Lady Yoon
Affiliations
Royal KingdomRoyal ConcubineRoyal FamilyRoyal ConcubineRoyal CourtRoyal Concubine
Royal Concubine Yoon is a member of King Ju Sang's inner royal household. Available cast listings confirm her presence but do not provide enough reliable information to define her family connections, motivation, or independent story arc. She should remain a supporting record pending direct episode review.
Connections
KingKing / Royal Concubine
Unknown No mapped connections
Also known as: Thought Ghost
Ghost of Thought appears as an English-language credits label associated with the supernatural activity in the series. The corresponding on-screen spirit cannot currently be distinguished reliably from the drama's other unnamed ghosts or gwi-mae. No major plot role, relationships, or episode events should be assigned until the original Korean credits are reviewed.
Unknown No mapped connections
Also known as: Court Musician
Musician is an existing minor THREADS record whose exact appearance and narrative function remain unverified. The label may refer to a court performer, an incidental credited role, or translated metadata rather than a distinct recurring character. It should not be assigned major relationships, organizations, arcs, or events without confirmation from the original credits.
