: 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.

: 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.

Produced by Ra.L and Jang Hyun-ho, the track features a sensory-rich arrangement: