"I think this camera can take pictures of the future..?!" Han Mirae, an ordinary high school girl who likes to take pictures, accidentally comes to learn the secret of an abandoned Polaroid camera and the shocking scene captured on the camera! Isn't that the class leader Nam Joo-young, who Mirae has a crush on, that is knocked out from being hit on the head? She decides to use the camera to save Nam Joo-young but as she gets entangled with Hwang Il Jin, she is misunderstood as the culprit and even accused of being a stalker! After many twists and turns, she rescues Joo-Young but Mirae hears some unexpected words. "Mirae, why are you chasing me?" The case is not over yet! A school mystery romance where excitement and thrill coexist.