a 17-year-old girl, Yona Yamamoto, is a big otaku who only sees manga, anime, and otome games in her life. her world revolves around these things, what would happen when she would experience the anime life in reality? when she would be transported to the Diabolik lovers world as Cordelia? would she be happy about it or sad? is she destined to change the original story? Find out how Yona survives as Cordelia? Would she save everyone ?? 1st ranking in -Sakamaki brothers 2nd ranking in- Ayato 1st ranking in- Shuusakamaki