Jungkook, a businessman and famous tycoon, is a cold, cruel, stoic, possessive, dominant, indifferent, inexpressive, silent and reserved man. What was strange about him is that he never goes out during the day, because he is a vampire, one of the most powerful. of his clan. You are hired as Jungkook's private secretary, so you must go to his house, a mansion that looks like a dark castle, luxurious but dark, you arrive at the mansion and knock on the main entrance door to start your work.