Krystal Jung

A policewoman age 21. She is the youngest and clumsiest police in the force. She has twisted every young boy's dream from becoming the top soccer player to getting arrested by her very own hands. However, the men in the force do not dare to approach her, reason being that her boyfriend is the chief of police. Her boyfriend was her senior in the academy and he has always liked her. Under certain circumstances, the clumsy police gave in to the chief and agreed to be his girl. Their relationship has just started but Krystal has her way to not get too physical with her boyfriend. Other than that, she can be serious but happy-go-lucky as well, when solving cases. She is a bubbly girl who has little fear and inspires to be the top policewoman in Korea. 
 

Amber Liu

She is not your ordinary teenage girl, she has lived for more than 200 years and you can call her an immortal. A group of the same kind lives together and moves from one place to another around the world in the period of two centuries. They are - Minho, Key, Jonghyun, Onew, Taemin, Yuri and Yoona. Their diet? Blood. They are called vampires. However, they're a special species because they have been trained to only drink animal blood, so they pose no harm to the human population. Onew is their leader and he later accepts a young vampire named, Kai. Amber is sick of living and all she wants is to die. She is tired of learning to adapt to the changes and spending her time alone, even though she has a group of bestfriends. But they are not enough, something is missing in her life, her immortal life. 

Choi Minho, Key, Kim Jonghyun, Onew, Taemin

They are the first batch of vampires who have lived for more than a millennium, they were contacted by a disease and underwent a horrifying torture that turned them into what they are now. Amber was contacted too because Taemin feasted on her, Onew was enraged to find out that Taemin had broken their rules so he made Amber one of them. They are now trained to only feast on animal blood thanks to Onew. 

Yoona and Yuri

They later joined the group when they were on the edge of their lives. They were too weak to hunt for human blood because of the outbreak of pandemic six hundred years ago. Minho found them and brought them back, they were thankful for their saviour and decided to follow Onew. They came in before Amber so everyone treats Amber differently, she is like the maknae of the group. 

Everything was fine and well until someone came along. People come and leave footsteps behind but some with memories. 
One night, it was all it took to change everyone's life, The once noisy and crowded street became empty and the chills in the night sent shivers down everyone's spine, no one dared to step out of their house when the night fell. Curfew was implemented and police was given instruction to patrol the street every hour.
One wrong step was all it took for things to fall in the wrong place.
 

Will the peace be restored?

Amber doubts so. She sits on the rooftop, keeping an eye for the pair of policewoman and man who are patrolling the vicinity, just in case her kind will attack on them. She hears the giggling sound which makes her ears prick up, her eyes flash red with anger and her long pointed canine teeth show. "It's him." She growls under her breath and ready to charge forward. 

"AHHHHH!"