The public discovers that Do-ha is the primary suspect in the case, and he becomes the public target. People are quick to point fingers and criticize him. Fed up with the situation, Do-ha decides he will no longer wait and take matters into his own hands. He decides to find the culprit himself to clear his name.

Do-ha successfully located Eom-ji's father, Yong-guk, whom Do-ha suspects to be the prime suspect. Yong-guk admits that he had hoped for Eom-ji's death to claim her insurance money but denies being involved in her murder. He reveals to Do-ha that Jae-chan used to constantly follow Eom-ji around.

Jo Jae-chan turns himself in to the police and confesses to the murder of Eom-ji. With the culprit now in custody, Do-ha and Sol-hee celebrate with their friends for Do-ha proving his innocence. While they can resume their usual life, Do-ha still has lingering unease in his mind. So Do-ha and Sol-hee decide to investigate further.