Premise: The Master of Revenge () is a 2016 South Korean television series starring Chun Jung-myung, Jo Jae-hyun, Jeong Yoo-mi, Lee Sang-yeob and Gong Seung-yeon. It aired on KBS2 from April 27, 2016 to June 30, 2016 on Wednesdays and Thursdays at 21:55 for 20 episodes.
Hypothesis: Jo Jae-hyun played in 20 episodes of Master of Revenge in 2016