Chapter 3 follows Isagi after the grueling first day inside Blue Lock. Unable to sleep because of the pressure and fear of falling behind, he leaves the dorm late at night to practice alone. The silence of the training hall only sharpens the weight he feels on his shoulders.
While practicing, he runs into Meguru Bachira, a quirky and unpredictable player from Team Z. Bachira quickly notices Isagi’s tension and challenges him to a spontaneous one-on-one match. As they play, Bachira explains that he listens to a “monster” inside him, a fierce instinct that pushes him to act without hesitation. He tells Isagi that he saw that same monster inside him earlier, during the tag game, when Isagi made a decisive move driven purely by instinct rather than thought.
Isagi is unsettled but also fascinated by the idea. For the first time, he wonders if he might have a hidden instinct of his own that he has never tapped into.
The next morning, Team Z gathers to receive their updated individual rankings. Isagi is stunned to discover that he has risen from rank 299 to rank 274. The improvement is small in the grand scheme of Blue Lock, but it encourages him; it means someone recognized even the faintest potential in him.
After announcing the rankings, Ego Jinpachi explains the complete structure of Blue Lock. Three hundred strikers have been divided into twenty-five teams across buildings labeled B through Z, with Team Z at the very bottom. Their real challenge begins now with the First Selection, a series of matches that will determine who continues forward and who is eliminated for good.
The chapter ends with Isagi replaying Bachira’s words in his mind. He begins to wonder whether there really is a fierce, undeniable instinct buried deep inside him, waiting for the right moment to surface as he steps into the battles ahead.