Miyu Seki is 24 years old and still without a job. The only thing she really has going for her in her life is her memorization abilities and her love for karaoke. Just as she finishes memorizing the parlor's new songs to blow off steam, tragedy strikes. In a flash she finds herself awake in a new world, where apparently she is the greatest musician, and finds herself thrust into various adventures as she uncovers the past of this world.