-- the mythical world and the mortal world. two worlds divided by a hidden portal deep in a forest. the mortal world is filled with creatures from the other world who seek for an escape. ones who seek a different, less harmful lifestyle. -- Min Yoongi, werewolf whose pack was attacked by local vampires, escapes to the mortal world in panic, who later finds himself in the care of a vampire who was abandoned by his own kind. -- Park Jimin, vampire with a deep secret, living in the mortal world cleverly disguised as a mere mortal who happens to take care of an injured werewolf who unexpectedly steals his non-beating heart.