The MBC Monday Tuesday drama "Night Watchman's Journal" Ko Sung Hee strived to find her sister. On the sixth episode of the MBC Monday Tuesday drama "Night Watchman's Journal" which aired in the afternoon of August 19, 2014, Do Ha (Ko Sung Hee) saw Mo Yeon Wol (Moon Bo Ryung) and felt the presence of her older sister Yoo Da In. Do Ha strove to find her sister Yeon Ha (Yoo Da In), who disappeared 12 years ago. On her attempt, she by accident ran into Mo Yeon Wol. Mo Yeon Wol reminded Do Ha so much of her sister that she could not stop staring at her. When Mo Yeon Wol looked back at Do Ha, she also felt weird, and seemed frustrated for something for a short time, and went back to mind her business. Audiences are wondering whether Mo Yeon Wol is Do Ha's older sister who disappeared 12 years ago. In related news, the MBC fantasy romance drama "Night Watchman's Journal" tells a story of exorcists in Cho Sun dynasty. The drama airs every Monday and Tuesday. Actor Jung Il Woo in the MBC Monday Tuesday drama "Night Watchman's Journal" plays Yi Rin, the prince of exorcism. Actor Jung Yoon Ho and actress Ko Sung Hee also star in the drama.