It marked 20.8 percent in viewership for its 17th episode aired Thursday, 1.9 percentage points higher than the 18.9 percent for its 16th episode.
Starring a star-studded cast of Jun Ji-hyun and Lee Min-ho, the drama series has enjoyed a high viewership share of 15-18 percent for its past episodes, but this is the first time it has broken the 20 percent mark.
Other dramas that air at the same time saw less than 5 percent of viewership.
The series’ viewership rating started to rise as the plot took a new turn with Heo Jun-jae (Lee) finding out that Shim Cheong (Jun) is a mermaid, and Heo and Shim’s past life starting to be disclosed.
There are three more episodes before the drama ends.
By Kim So-yeon (firstname.lastname@example.org)