Л„€л“њм»¤л„ґм…˜(nerd Connection) - I'm Lost (лё”лќјмќёл“њ Ost) Blind Ost Part 4 Apr 2026

The song serves as a psychological anchor for the drama's two primary characters, brothers and Ryu Sung-hoon , as they navigate a labyrinth of forgotten trauma and a brutal modern-day serial murder case. The Story Within the Song

: The track reflects the emotional chaos of the brothers as they dig into a dark past connected to the Hope Welfare Center , a facility where children were once abused and exploited. The song serves as a psychological anchor for

: The vocal performance by lead singer Seo Young-joo delivers a mix of vulnerability and desperation, which heightens the immersion during the show's most tense, twist-filled moments. brothers and Ryu Sung-hoon