One quiet dawn, Yeon-woo met a runaway boy following the sound of his humming sharp. Yeon-woo shares the hardships of people with the boy he sees for the first time because he is kind of cute, who reacts sharply to his help. Two years have passed, and as if the meeting on that day was a dream, Yeon-woo does not loosen his guard down for the approaching alpha. However, the refreshing woody scent of pheromone permeates between the borders, and Yeonwoo follows the scent without even stopping himself and encounters a very strong Alpha Kim Shin