After someone tried to kill her, Liz wakes up with amnesia. For some reason, her previous self had been pretending to be “useless,” and she transforms from a gloomy, dowdy dropout into a competent, confident beauty! She begins to brilliantly and satisfyingly get back at the noble ladies who used to bully her. Meanwhile, one of two princes approaching her may have been the lover of her past self…!? A hidden-high-spec noblewoman rises to success while being loved—royal romance × mystery!