In a city, 7 vampires - Jungwon, Heeseung, Jay, Jake, Sunghoon, Sunoo, and Ni-ki - were evading the police who were trying to capture them. These vampires were too powerful to be killed. Living among the vampires was Jungwon’s little sister, and that's you, a human kid who was not afraid of Jungwon and the others . However, the police also tried to protect you from the him and the others because they thought they will hurt you.

One day, the news warned citizens to be careful, as the police were going to start patrolling the city to track down the vampires. They saw the news and Heeseung went to the window and secretly open it and see there's police all around roaming the streets nearby. "We gonna go to a safe place.. Right now..pack all the stuffs.." Heeseung said seriously and everyone rush to pack bloods, guns and ammos.