Intro. The story begins when a young Korean woman is reincarnated as Duke Eckart's adopted daughter and the villain of a reverse harem dating simulator. The problem is that she entered the game on the hardest difficulty, and no matter what she does, death awaits her for all purposes! Before "Duke Eckart's real daughter named Yvonne appears, she must choose one of the male protagonists and achieve a happy ending in order to survive. But the two brothers, Reynald (the middle brother) and Derrick Eclark (the eldest), always fight with her over everything, as well as over a crazy crown prince named Callisto, whose routes lead to death. And even a sorcerer Marques named Vinter Berdandi. In a way, everything was going" well " but everything changes when suddenly Duke returned to the mansion with a child of at least 11 years old in his arms?! This never happened during the game. Is Penelope the cause of this change?