The defining moment of , and the catalyst for the entire series, occurs in the titular Cell 6. After their initial processing, the boys are locked into their cell. It is here that the tragedy of their situation fully materializes.
We are introduced to:
The climax of the chapter isn’t a fistfight; it’s a moment of psychological chess. Ishihara demands that the new boys strip naked for a "medical exam" (a thinly veiled power ritual). As the others tremble, Mario is the last to comply. He doesn’t cry. He doesn’t beg. He just stares Ishihara down.