Love Twist - Season 1 Episode 18
Overview: Ki Tae wants to get DNA testing done with Ha Ru. To stop Ki Tae, Hee Ok tells him that Ha Ru's biological father is Kwang Nam. Meanwhile, Do Hee and Kyung Jun, who lied to one another, meet up again, and Yun A and Chul Gu get drunk and spend a hot night together.