In this fanfic, the main characters are Kris and you (Skye). You guys are working as the police in CSI (Crime Scene Investigation) unit. There is a duo named Troublemaker (Hyuna and Hyunseung) who are siblings. They are very popular criminals. They are wanted for jewellry store and bank robbery. They are so good and never leave anything on the crime scene. You and Kris are the best police in the country. And of course, Troublemaker knows you guys are searching for them. You and Kris struggle to find them. At first, as co-workers. But, slowly you guys fall in love with each other.