Online hot-takes routinely mischaracterized Deku’s fate as an unhappy abandonment by his peers. The canonical panels contradict that reading entirely. When One For All’s residual embers finally burned out during his late teens, Midoriya chose to mentor the next generation as a foundational instructor at U.A. High School. He shaped the foundational ethics of incoming classes, walking the same halls where his hero journey began.
His absence from the streets was neither permanent nor involuntary. Precision support gear requires years of development and staggering capital. Drawing direct inspiration from the "Armored All Might" suit used against All For One, Katsuki Bakugo organized and heavily bankrolled a multi-year development project alongside their former classmates.
Engineered by Hatsume Mei and the American support pioneer Melissa Shield, the resulting battlesuit utilizes cutting-edge materials and adaptive power nodes to emulate physical enhancement. Midoriya stepped back into active deployment not through a sudden supernatural re-awakening, but via the collective sacrifice, investment, and camaraderie of the peers he helped save.