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El secreto del Duque Lobo The Duke's Fluffy Secret
También conocida como: The Duke's Fluffy Secret · Bí mật của công tước sói · Das Geheimnis des Wolfherzogs · El secreto del duque lobo · Le secret du duc loup · Rahasia Duke Serigala · The Duke Wolf's Secret · The Secret of the Wolf Duke · Тайна герцога-волка · ความลับของดยุกหมาป่า · オオカミ公爵の秘密 · 狼公爵的秘密 · 늑대 공작의 비밀 · The Wolf Duke's Secret · Neukdae Gongjagui Bimil
Viviana Lorentz, the Duchess of House Fortuna, becomes utterly displeased with her far-too-rigid husband, Alto Fortuna, the duke who rarely entertains her at night. When she finally snaps and clashes with him, she ends up tumbling back in time, exactly a month before their destined marriage. Determined to escape the marriage this time, Viviana requests to call it off, only to be taken aback by Alto's firm refusal. As a final measure, Viviana decides to make a rather lustful "deal" with her current fiancé, not realizing she will end up facing his unexpected secret.