This backup story starts a series of Young Miguel stories that are pasted into the back of Spider-Man 2099.
Miguel, Xina, and Kron are ouside playing soccer many years previous. Kron dives at Mig, leaving Kron flat on his face. Kron grabs Mig's shorts and pulls them down. Everyone laughs. Kron challenges Mig to a fight, but Mig runs. The coach saw the whole thing and berates Kron. Unflappable, Kron counters by offering the coach a call to his father's private line.
Xina catched up to Mig, and apologizes for laughing at him along with the rest of the class. But, at the same time, she warns Mig that he has to start to learn to stick up for himself or else he'll always be the victim.
Later that night, as Xina exits the shower, Kron is waiting for her...with a knife!
The Young Miguel story adds little, and has the downside that it forces the main story to be shorter, making that also rather unsatisfactory.
Nothing too special.