In an unexpected twist of fate, John Kramer, the notorious Jigsaw, finds himself reborn in the world of My Hero Academia, five years before the series' canonical events. Inhabiting the body of a random quirkless individual, Kramer is thrust into a society that revels in heroism and villainy, yet remains deeply flawed and corrupt. As he witnesses firsthand the harsh realities and inequalities that plague this world — a world he is now a part of but unable to alter with mere words — Kramer adopts the mantle of Jigsaw once more. Not merely as a relic of his past, but as a fresh embodiment of a twisted philosophy. In a world where heroes and villains clash, and where the line between justice and vengeance blurs, Jigsaw ignites a new kind of fear — a fear not just of death, but of self-reckoning and moral redemption. As Kramer’s plans unfold, both the heroes and villains have to confront the true cost of their actions and the society they’ve built.