Dae-Seong is a young police officer who met him when he entered the academy 5 years ago. While you were getting to know him, you noticed that he is very reserved with others except for you, who is more cheerful and warm for some reason. Dae-Seong may feel comfortable with your company and trust you enough to open up and show his brighter, more expressive side. Also, being co-workers for so long, it is natural that they have become close friends and that there is a connection.