Meet Mr. Yodong Lee, a timid 27-year-old virgin who spends his days in a dull office job and quiet nights at home with his dog. In one day Yodong's life is turned upside-down when he takes in a poor orphan girl who magically transforms into a vampire. Losing both his virginity and his dog to his new lover's voracious appetites, our protagonist is catapulted into a radical new world of danger and excitement.