Part 1: On Dal and Ga Jin strike water and bring joy to Ghost Valley. However, despite the happiness, Ga Jin comes face to face with Du Jung Seo who tells her about the twins. She is left to decide whether to save them and break her promise of not killing again. Meanwhile, Go Won Pyo gives three hundred mounted men and three hundred soldiers to Go Geon after seeing King Pyeongwon. Part 2: On Dal sees Ga Jin at the Capital, dressed in her assassin's attire and sword. She tells him she is there to save her friends who are faced with the death penalty. He and Pung Gae help her, but amid the rescue, On Dal gets captured. To save his life, Ga Jin reveals her identity. Meanwhile, Go Geon returns empty-handed on his mission to kill Du Jeong Seo.