The Northern Grand Duke's Secret Contract Official

You are reading The Northern Grand Duke's Secret Contract Official manga, one of the most popular manga covering in Adult, Fantasy, Mature, Smut, Webtoons, Yaoi genres, written by Ganu at ManhuaScan, a top manga site to offering for read manga online free. The Northern Grand Duke's Secret Contract Official has 21 translated chapters and translations of other chapters are in progress. Lets enjoy.
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The Grand Duke of the North, who has been cursed, suffers from unsatisfiable, boiling sexual desire every night. The wizard, who happened to see the Grand Duke in such a state, proposes a secret contract. In exchange for the Grand Duke's semen for research, the wizard will satisfy the Grand Duke's desires every night...