Influenced from a young age to bully her stepsister Mielle, Aria Roscent had lived her life wickedly, ultimately paying the price for her misdeeds with her life. But before her death, Mielle reveals that actually, she was the one encouraging her own bullying behind the scenes as a means to oust Aria. Now back in the past thanks to a mysterious hourglass, Aria has just one goal: utterly ruin Mielle’s life. But can this villainess outsmart the villain who turned her wicked in the first place?