India, March 1 -- SBS' Buried Hearts (aka Treasure Island) and MBC's Undercover High School kicked off their brand-new Friday-Saturday episodic K-drama journeys in the same time slot on February 21.

Despite establishing a neck-and-neck race on the TV viewership ratings chart, the former revenge drama starring Park Hyung Sik gained an edge over Seo Kang Joon's spy action comedy with average nationwide ratings of 6.1%. Meanwhile, the latter commenced its run with a 5.6% score, per Nielsen Korea. Both shows have since consistently improved their weekly ratings, achieving their new bests with every episode.

The latest episodes of Park Hyung Sik and Seo Kang Joon's respective K-drama dropped on Friday, Feb 28, and earned their highest rating...