Young finally catches the real culprit who killed Kang San and raided the forge. At the same time, Young notices that he has the same scar as the man he saw at Mangwol Temple when he was little. Meanwhile, Ro Seo and Geum brew liquor for Un Sim with Lady Park as promised. However, they have to get past the inspection at Sungnyemun to deliver them to Giringak.