Gambangeseo Namjajuingongeul Mannatseumnida

As if waking up in an R-rated dark romance wasn't surprising enough, it turns out that Ianna is in the prison where the cursed male lead, Rikedoran, is also being held! Despite having no memories of her own, Ianna thankfully has full knowledge of the story, which leads her to visit Rikedoran out of curiosity. In his cell, she discovers rather shocking truths about the reality of his curse and his past. It doesn't take long for her to wonder whether she'll be able to leave him and the plot be...
(Source: Tapas)