One day Lilia Eldina, daughter of a noble duke, suddenly remembers that she had reincarnated from a geeky woman in her thirties who only played dating sims. Not only that, but she reincarnated into a villainess in a dating sim that she had played in her previous life! Lilia ignores all romantic routes and pursues her favorite hobby of playing music. With her past memories, can she avoid the impending death of the villainess she has become?