Seraphina, heir to the Thorne household, has been imprisoned by her uncle’s family for five years. Her songs and works are stolen by her cousin. To protect her younger sister Leah, she feigns insanity while secretly gathering evidence and summons Lucian, the Judgment Angel she saved fifteen years ago. Side by side, they expose the lip‑synching fraud, reclaim her birthright, and investigate the truth behind her mother’s murder. In the end, they uncover a forbidden‑living‑rite conspiracy orchestrated by high‑ranking figures of the Holy Court lurking behind the Thorne family.