Sketch S01E10 - Episode 10

Prosecutor Yoo joins in the investigation and personally visits Kang Do Sik's house, who is responsible for Si Hyun parents' death, and as a result, finds himself in the hospital. Si Hyun sketches a picture that's identical to the scar Prosecutor Yoo gets from a chase and later finds out Kim Do Jin is behind his kidnapping. She heroically saves her brother moments before Detective Kang loses his chance to arrest Kim Do Jin.