Chapter 19

Stung by Kuon's abrupt switch of sides, Isagi swears he will pay him back, but Kuon has already handed the twins his weakness. Keisuke and Junichi lock onto Isagi and cut off his passing lanes, and with twelve bodies facing ten, Team Z is buried under a numbers gap. Junichi lines up another effort at goal, since a second concession would drop Team Z two behind and choke their hopes. Isagi cries out for Iemon, who reaches up and flicks the shot clear of the net. The rebound spills loose, both sides scrambling for it. Spotting Chigiri nearby, Isagi shouts his name, but as Chigiri moves in, Keisuke reaches him first and taunts that today ends his football career. The jab freezes Chigiri on the spot, and Raichi screams at him to get back and defend.

The chapter rewinds to the lives of Chigiri, Keisuke, and Junichi before Blue Lock. The twins were celebrated as the double aces of Rajitsu Tech, while Chigiri was merely a newcomer. Dismissing their status, Chigiri declared he cared nothing for reputations and only wanted to carve out his own name, then unleashed blistering speed that left both brothers stunned by his pace and control.

That speed rocketed Chigiri to the top of the school, drawing magazine features and interviews as he supplanted the twins entirely. Their coach reckoned Chigiri could carry the side to a national title, which enraged the discarded aces. Chigiri, indifferent, held that natural geniuses simply outrank everyone else. He had taken up the sport at six, poured his whole self into it, and believed his legs were built to eclipse any rival and make him the finest striker alive.

Then, mid-match, disaster struck: a torn ACL. Doctors warned that although the tear was not catastrophic, a second injury could end his playing days for good. Branded the fallen genius by classmates and mocked by the Wanima brothers, Chigiri returned to the club moving at a fraction of his old tempo. Keisuke jeered that he was terrified of snapping his leg, but Chigiri's real dread was losing football itself, the thing that defined him, which is why he had been hunting for an excuse to walk away. On the brink of quitting, he hears Isagi bellow at him to run, insisting the match is far from finished.

Kuon's betrayal leaves Team Z outnumbered and Isagi smothered by the Wanima twins. Iemon's flick denies Team W a second goal. A flashback reveals the Wanima brothers were Chigiri's seniors at Rajitsu Tech, that his unmatched speed made him the club's ace, and that he tore his ACL there. The chapter closes with the score sitting at four to three.

The installment centers on Chigiri's origin, framing his belief that talent entitles the gifted to dominate, his meteoric rise on pure pace, and the injury that hollowed out his confidence. It also aligns with Episode 7 of the anime adaptation and sets up Isagi's plea for Chigiri to run again.