The September 13 broadcast of "Lovers of the Red Sky" had an average countrywide audience rating of 9.7%, according to Nielsen Korea. This is a 0.1 percent increase over last week's 9.6 percent rating, which was the drama's previous personal best. Among Monday-Tuesday dramas running in comparable time periods, “Lovers of the Red Sky” remained at the top.

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The average countrywide rating for KBS 2TV's "Police University" was 5.5 percent, down 1.4 percent from the previous episode's 6.9 percent rating.

The third episode of tvN's "High Class" had a national average of 3.3 percent, with a high of 4.5 percent. This rating is almost identical to the drama's first week ratings.

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“Lovers of the Red Sky” on SBS has surpassed the coveted 10% threshold in viewership numbers!

According to Nielsen Korea, the episode of "Lovers of the Red Sky" that aired on September 14 received an average national rating of 10.2 percent. Not only is this the drama's first time going beyond 10%, but it's also a new personal high for the drama, which was 9.7% in the previous episode. The drama's ratings have risen for the previous three episodes in a row, indicating that it is growing in popularity among viewers.

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On tvN, “High Class” also set a new personal best with ratings of 3.986 percent after having recorded between 3.2 and 3.4 percent in its first week.