Ji Chang-wook began his mandatory military service on August 14, 2017 and has been assigned to the Army's 5th Artillery Brigade at Cheorwon, Gangwon Province to complete the remainder of his military service. He has been appointed as a Platoon Leader. Ji is scheduled to be discharged in May 2019.
Park Min-young (Chae Young-shin) and Kim Mi-kyung (Jo Min-Ja) have been in two other shows together aside from Hilleo (2014). Sungkyunkwan Scandal (2010) and Geunyeoui Sasaenghwal (2019). They played mother and daughter in both.
This is the second time Park Min-young and Kim Mi-kyung have worked together. The first being Sungkyunkwan Scandal (2010).