Jungkook, out of the Bangtan Boys, is the youngest vampire among them and hadn't had his first victim yet. One night at a masquerade party, he encounters a bounty hunter, Robin Gray, a young female who can wields a vampire/monster killing scythe. The two of them soon meet and things take a large turn.

There's a quite new boy in Seoul and he has everybody talking. Stunningly handsome and devastatingly sexy, all the girls want him. However, Jeon Jungkook has a secret - he's a dark vampire. Park Hanhee is a beautiful, wild girl who enjoys singing. She becomes fascinated by Jungkook who can stop brick with his bare hands. She doesn't understand why he's so standoffish. Her best friend, a smart wolf called Sojin, helps Hanhee begin to piece together the puzzle. Together, they discover Jungkooks worst secrets in an attempt to expose him. When bodies start turning up all over Seoul, Hanhee begins to fear the worst. The wolf urges her to report Jungkook to the police and she knows she should, so what's stopping her? She may resist Jungkook's bite, but can she resist his charms? Will she be caught kissing with the vampire?