Despite a 200-year-old treaty between humans and vampires, both races still don't get along. Amidst the looming tension, Jung Jae Min, a posh yet kindhearted high school student, quickly falls for the mysterious new girl Baek Ma Ri. But can Ma Ri conceal her true vampire identity and give love an honest chance? If these star-crossed lovers can find the courage to make the leap, Jae Min and Ma Ri may just be the key to a final resolution between humans and vampires...

Do-kyeong (Sin Won-ho) who is fresh out of the military meets mysterious Ga-in (Kim Hwa-yeon) on a boat to a deserted island. He is attracted by her fragility and thinks she might disappear soon. That evening, the two of them meet again at a bar called Yubari and spend the night together. Ga-in has a growing passion inside of her and Do-kyeong struggles to free himself from her obsession.