'Treasure Island' Breaks Viewership Records with Birth Secret Revelation

'Treasure Island' (보물섬) has once again shattered its own viewership records with the introduction of a birth secret card. According to Nielsen Korea, the 10th episode of the SBS Friday-Saturday drama, which aired on March 22, achieved a nationwide rating of 13.1% and 13% in the metropolitan area, marking its highest ratings to date. The peak viewership soared to 14.7%, while the crucial 2049 demographic rating stood at 2.8%. This success positions 'Treasure Island' as the top mini-series on Saturdays, leading all channels during its time slot and securing the number one spot for weekly dramas.

In this episode, the birth secret surrounding Seo Dong-joo (박형식) began to unfold. Earlier, he had declared to Yeom Jang-seon (허준호), "What I want is revenge," stating, "I will kill you when your life holds enough value for my revenge." He also warned Heo Il-do (허일도) that he would exploit his past attempt to murder him. Following through on his vow, Seo Dong-joo intensified his revenge, putting pressure on both men.

After returning to Daesan Group, Seo Dong-joo hastened the promotion of Chief Choi (김민상) to vice president, following the wishes of Chairman Cha Gang-cheon (우현). He also sought to leverage the card of Cha Gang-cheon's illegitimate child, Ji Seon-woo (차우민), by visiting Ji Young-soo (도지원), only to encounter Cha Deok-hee (김정난), the chairman's daughter and Heo Il-do's wife. Seo Dong-joo's swift actions heightened the anxiety of the couple.

Utilizing Manager (성노진) and Jo Yang-chun (김기무) as pawns, Seo Dong-joo continued to apply pressure on Yeom Jang-seon. Notably, the mention of 'Dandelion Data,' which could become a significant weakness for Yeom Jang-seon, sparked Seo Dong-joo's strategic thinking. This data pertains to past surveillance conducted by the National Security Agency on key figures, including Yeom Jang-seon.

As the episode progressed, it became clear that all these events were part of Seo Dong-joo's grand plan. In fact, he had regained his memories when he saved Heo Il-do from drowning. Seo Dong-joo had rescued the man who shot him, intending to exact revenge. When Heo Il-do questioned why he saved him, Seo Dong-joo ominously replied, "You will come to know the pain that will make your bones ache."

Meanwhile, after hearing from the manager that he knew his father, Seo Dong-joo embarked on a quest to find his biological father, possibly linked to the name 'Seong-hyeon.' He believed that his deceased sister and he shared the same father, although they were not blood relatives.

During this search, Seo Dong-joo came across an old photograph showing a young Dong-joo being held by Yeom Soon-ho (주상욱). The fortune teller (손지나) suggested that Yeom Soon-ho might be Seo Dong-joo's biological father. Later, when he showed the photo to Yeo Eun-nam (홍화연), she pointed out Yeom Soon-ho, exclaiming, "That's our dad!" The episode concluded with Seo Dong-joo in shock, setting the stage for future revelations.

Episode 10 of 'Treasure Island' skillfully depicted Seo Dong-joo's meticulous and intense revenge against Yeom Jang-seon and Heo Il-do, while also dropping shocking hints about his birth secret, leaving viewers on the edge of their seats.