Korea's best hunters of the things that go bump in the night are Im Jae Bum, Park Jinyoung, Kim Yugyeom and Choi Youngjae. With their trusty Angel Mark, the smart and sassy Bam Bam and his friend, the even sassier Jackson Wang, the seven work together to rid the world of the darkness and the evil.  Enter Geovanna Park, a mysterious girl with a grey past, and her sidekick Tyler Liew. Together, they enter the boys' lives with the claim to want to help them defeat their biggest problem y