On March 2, the new drama starring Kim Nam Joo and ASTRO’s Cha Eun Woo enjoyed an increase in viewership for its second episode . According to Nielsen Korea, the latest broadcast of “Wonderful World” scored an average nationwide rating of 6.1 percent, marking an 0.8 percent rise from its premiere the night before . tvN’s “Captivating the King,” which has just one episode left in its run, dropped to 5.6 percent ahead of its series finale .