Blue Lock Chapter 125

Blue Lock Chapter 125, titled "Ruin," delivers one of the series' most emotionally devastating moments as the Itoshi brothers' relationship is permanently severed through a brutal demonstration of skill disparity. The chapter explores how dreams can be destroyed not through external obstacles, but through the painful recognition of insurmountable talent gaps. Rin's childhood essay about becoming like his brother establishes the depth of his admiration and the foundation of his identity around their shared dream. This innocent aspiration makes his eventual disillusionment even more tragic, as his core identity becomes tied to an impossible goal. The one-on-one match between the brothers serves as a metaphor for the harsh reality of elite competition, where sentiment and family bonds cannot overcome objective skill differences. Sae's overwhelming victory demonstrates how talent gaps can be so vast that effort and determination become meaningless. Sae's easy dominance and subsequent dismissal of their shared dream represents the moment when competitive reality destroys romantic notions about family partnership. His decision to end their dream and sever their ties reveals how elite athletes sometimes must sacrifice personal relationships to pursue individual excellence at the highest level.