Connection - Season 1 Episode 9
Overview: Jaegyeong knocks on Jeong Yoonho's door to arrest him for the murder of the mill owner. Meanwhile, Jaegyeong, Yoonjin, and Joosong gather at Jaegyeong's house to look over Myeonggook's work log. Joosong prepares a surprise birthday cake for Yoonjin, but an unexpected guest comes.