[Machine Translation] Rin finds herself reborn as Richelli, a duchess in the country of Erland. Her fiance is the crown prince, Jinon... Is this the world of the girl's game my sisters were crazy about? And I'm a villainous young lady who tricks all her targets into sex! But I'm not a romantic at all, so I'd be more comfortable in a convent with a bad ending... Rin is lost in her new life, but she finds herself in the swamp of Jinon, who wonders about her...! The heroine who was reincarnated as a villainous daughter with the opposite character and the prince, who is a Dosi childhood friend, are in a tumultuous love fantasy!