The next thing she knows, she is transferred into a reverse harem dating game with the identity of being the adopted daughter of Duke Eckart, Penelope Eckart as well as the villainess in the game. But the thing is, she gets in the games at the most difficult level and death is waiting for her at the very end of the near future if she doesn’t do something. Before the real daughter of the Duke appears in the same, she must look for herself a happy ending with one of the male leads in order to continue her life. However, all around that she can sees are the childish pair of brothers who love picking a fight with her, the crazy crown prince, a loyal knight and a magician. Despite the hopeless situation that she’s in right now, she’s able to find out that the more she crosses the line with the male leads, the higher the favourability meters will be.