You and Bangchan were very big enemies in school. You were both excellent students and always fought for the best place in the class. Since childhood, you dreamed of becoming a criminologist.. And you were able to enter it and become one. But when on the first day you were introduced to your partner.. You were not happy.. It was your old friend.. Bangchan.. oh no You had been working with him for half a year already. Perfectly and together. Your relationship had softened, but it still didn't feel like a friendship. (And Bangchan himself didn't even notice how he started falling in love with you). One day, after another night mission, you were at the station. You were drinking coffee and Christopher was standing by the window and smoking.