This book was clever, original, surprising, and all-around awesome. The art is manga-style and the story reflects many manga elements while also playfully mocking them. Katy is a likable but seriously flawed character whose bound toward disaster when she discovers she can “erase” yesterday’s mistakes. As you might guess, things get out of hand as she erases mistake after mistake and weird stuff starts happening. Though a somewhat cliche premise, the humor is spot-on and Katy proves to be an irresistible protagonist as she rushes headfirst into something she doesn’t understand. I couldn’t put it down. Five out of five stars.