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The demon lord's daughter Yurisina was living a normal demon's life when she was summoned by a human who was about to die. Not just any human, but the Paedin kingdom's first princess Marianne. As Yurisina lives on in her body instead, Marianne requests that Yurisina takes revenge on the person who poisoned her.
“Could you sleep with me?” The moment Min Seolha accidentally lets that question slip to her boss, Cha Jeongmu, she believes she is done for. Yet to her surprise, her superior and crush of three years agrees, even adding on a condition that they won’t have a limit to the number of nights they spend together. And so begins the CEO and secretary’s steamy love affair after work hours. But unbeknownst to them, a shared tragic past could end up jeopardizing their already-risky romance...