Katarina (voiced by Maaya Uchida) is a rich girl who was born with a silver spoon in her mouth. When she was 15 years old, she accidentally got the memory of her previous reincarnation because of a head collision. Katarina was shocked to find that she was in the world of "FORTUNELOVER", a girl game that she particularly liked in her previous life. The role she played in this world turned out to be an evil villain specially set up in the game to hinder the love of the game protagonist. Her best ending is exile, and the worst ending is death! How can Katarina get along with the blond, blue-eyed, black-hearted sadistic prince Giordo (voiced by Shota Aoi), the beautiful appearance and twisted heart of Gis (voiced by Tetsuya Kakihara), the outstanding musical talent of Alan (voiced by Tatsuya Suzuki), and the demonic beautiful boy Nicole (voiced by Yoshitsugu Matsuoka) to avoid the fate of tragic death?