Rana believes that the earth will be destroyed by a meteorite strike. She tells Mei, her newly adopted sister, who just so happens to be the same age and enjoys the same hobbies as her. One day, their adoptive father gives them some bad news. The family business is going under and subsequently, he can only afford to keep one of them. This sets off a chain of questionable mishaps. Leading to a shocking outcome and an unexpected ending.

One day an idol is bitten by a zombie and before she is taken into custody, she runs away. She only has 72 hours left until she becomes one, so she tries to find the zombie serum, but high school girl zombie hunter and zombies attack her. Will she make it to the destination within the time limit?