A Vow in the Dark: Story, Cast and Series Facts

Story and premise

Three hundred years ago, the Celestial Maiden Jin Li sealed away the Demon Lord Jie Chuan. Three centuries later, a young celestial beast, Jinli, accidentally breaks the seal. Drawn into the demon realm for her ability to absorb his magic, they are locked in a cycle of conflict and attraction. But when the truth emerges—that Jinli carries the fragmented soul of Celestial Maiden Jin Li—their fragile bond is tested by love, betrayal, and the echoes of an ancient feud.

Series details

• Title: A Vow in the Dark
• Format: Scripted
• Language: Chinese
• Genres: Romance
• Premiere date: 2025-12-20
• Final broadcast date listed: 2025-12-26
• Status in TVmaze: Ended
• Web channel listed by TVmaze: Tencent QQ
• Network country: China
• Typical episode runtime: 19 minutes
• TVMaze ID: 88930

Seasons in the TVmaze catalogue

• Season 1: premiered 2025-12-20; final listed air date 2025-12-26; episode order: 24.

Source and licence

Adapted from A Vow in the Dark on TVmaze. The synopsis is reproduced as plain text; catalogue facts, cast and season records are selected and reformatted. This adapted text is available under CC BY-SA 4.0, following the TVmaze API licence. Network and web-channel credits identify the service listed in this source; they do not establish current streaming availability.