If you're reading the manga, (covering chapters 122–131) takes us into the legendary U-20 Arc .
This volume focuses heavily on Ryusei Shidou, the erratic, violent, but undeniably gifted striker. His "explosive" chemistry with Itoshi Sae begins to take shape here, setting the stage for the most intense match in Japanese football history. BLUELOCK 15
Volume 15 is where the Blue Lock project moves from an internal experiment to a national spectacle. The tension is no longer just about staying in the program; it's about the very survival of Blue Lock against the established U-20 Japan team. Why "15" Matters If you're reading the manga, (covering chapters 122–131)
Across both mediums, "15" represents the moment where "playing safe" dies. Blue Lock, Volume 15 - Boston Public Library - OverDrive If you're reading the manga