Investigating on the reported deaths that has been happening, Donghae concludes that all of them were caused by what is known to be Vamparic attacks. His father and at the same time his Head doesn't believe him on his theory and fires him along side his young partner, Minho. Eager to know what caused the murders and the deaths of some, he continues to investigates. His hard headed and melancholic investigation leads him and his partner to a girl where trouble then starts to lurk just behind their shadows.

CHARACTERS:

Lee Donghae - a strong charismatic young investigator, who tries to interrogate and learn all of a vampire's characteristics and way of living and uses it to go against them.

Jung Jessica - a 124 years old vampire who moved to Incheon and isolated herself from her kind. Donghae meets her one night as he investigated and things started to become a lot more complex and complicated for them.

Choi Minho - Donghae's young and cheerful companion who checks and cares for his Hyung unendlessly. He meets Krystal from nowhere and thoughts that he was unrequitedly falling for young mysterious girl.

Jung Krystal - a strange and mysterious girl Minho falls a crush on. She keeps herself from the distance as she tries to watch over and protect both Donghae and Minho from Jessica.

Ok Taecyeon - Jessica's all around companion. He follows Jessica around and keeps a secret only he knows about.