tvN's "Flower of Evil" and MBC's "When I Was the Most Beautiful" broke their records and soared to new heights!

With just one episode left in its run, "Flower of Evil" on September 17, broke its viewership record and achieved its highest ratings to date. The ratings of the penultimate episode of the mystery thriller, according to Nielsen Korea, managed to break past the 5 percent mark for the first time and scored an average nationwide rating of 5.1 percent. The episode nationwide peaked at 6.0 percent.

"Flower of Evil," with the key demographic of viewers ages 20 to 49, also continued to perform well with whom it scored an average nationwide rating of 2.8 percent and a peak of 3.4 percent for the night.

Previously, the September 16 episode of Lee Joon Gi and Moon Chae Won's thriller drama scored a nationwide rating of 4.8 and a peak of 5.4 percent, which marked the new personal record of the drama series a day before the penultimate episode. Ages 20 t0 49 are among the critical demographic viewers of the drama with whom it scored and an average rating of 3.1 and a peak of 3.4 percent nationwide on the 16th.

Meanwhile, similarly reached a new all-time rating high on September 17 is MBC's "When I Was the Most Beautiful." Garnering the average nationwide ratings of 3.7 percent and 4.7 percent for its two parts, the latest episode of the romance drama marked a new personal record for the show.

Moreover, the prior episode of the MBC drama "When I Was The Most Beautiful" scored average nationwide ratings of 2.7 percent and 3.6 percent for its two parts.

Watch the series finale of "Flower of Evil" will air on September 23. In the meantime, catch up Lee Joon Gi and Moon Chae Won in their off-cam chemistry as they exchange smiles and jokes while rehearsing together. Here is the full video below!