
by bocwriters
My Fiancé Sold My Soul, So I Married the Demon Prince My fiancé sold my soul. On the night of her wedding, forensic auditor Mira Vale discovers a second marriage register hidden beneath the ceremonial one. Its clauses do not grant her a husband. They sell her professional authority, future estate, and soul to a financial instrument designed to mature when she dies. Her fiancé, Cassian Aurell, is not shocked that she found it. He is only disappointed that she found it too soon. He kills her before midnight. But as infernal collection tears her life into entries, Mira uses her final breath to identify the contract’s defects: undisclosed consideration, a witness who does not exist, and authority invoked before the marriage legally began. The impossible appeal sends her thirty days into the past and leaves a blood-red ledger in her hands bearing a single judgment: MIRA VALE DIED OWING NOTHING. The fraudulent claim still exists. The wedding clock is running. And the demon prince assigned to collect her soul is on his way. Veyr, the exiled Prince of Last Appeal, can enforce any lawful debt—but he cannot determine whether a promise was freely made. Mira can prove the human fraud—but she possesses no infernal authority capable of stopping collection. Their only workable precedent is an abolished law granting protective priority to a spouse. So Mira proposes marriage to the demon sent to take her soul. Their contract grants neither ownership nor affection. It gives them one year to expose a conspiracy hiding stolen names, memories, and lifespans inside ordinary promises. To survive, an auditor who trusts only evidence and a prince who trusts the law must learn whether a vow can bind two people without becoming a cage. Expect a slow-burn adversaries-to-partners romance, a highly competent heroine, forensic contract magic, supernatural investigations, political intrigue, found family, and one endgame couple. No harem.
No streak history
One state-enhanced oracle order, filtered by each list. Observed Royal Road ranks remain separate ground truth.
Rank updated 6 Oct 2026, 15:58 UTC
Entry forecast updated 6 Oct 2026, 15:58 UTC
Ranking model: rs-public-oracle-state-v1
Forecast model: rs-model-entry-v1
Chart history contains only this ranking model's runs; legacy points are not spliced in.
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Hidden gem — exposure is the bottleneck
Readers who find this story follow it at a high rate; there just aren't enough of them. In our cohort data, near-daily posting lifted the odds of reaching 25 followers from ~0% to 17% — more chapters, shoutout swaps and ads buy the eyeballs this conversion deserves.
Benchmarks: 8,060 active Royal Road stories, percentiles within the 5–9 chapters band, cohort of 2026-07-02. Conversion is measured as followers gained per 1,000 views lifetime.