In Episode 156, the heroes discover a crucial weakness in Himiko Toga's Quirk: She can only use the abilities of the people she transforms into if she genuinely likes them. As Toga struggles with her inability to fully exploit her allies' weaknesses, the heroes see an opportunity to gain the upper hand.

At the same time, Hawks and Tokoyami encounter a rejuvenated All For One, who grows increasingly powerful as Rewind's effects return him to a younger state. Their goal is to stop him and prevent his reunion with Shigaraki. The battle intensifies as All For One orders Gigantomachia to eliminate the heroes.

Fifteen minutes earlier, a team led by Mt. Lady, Kirishima, Ashido, and Shinso works to prevent the villains from awakening Gigantomachia. Ashido unleashes her enhanced technique, Acidman: Alma, to cripple the giant. Shinso uses his Brainwashing Quirk, imitating All For One's voice to control Gigantomachia. Though under Shinso's influence, Gigantomachia wrestles with feelings of betrayal toward All For One, who abandoned him.

Back in the present, Gigantomachia confronts All For One, questioning his motives. The heroes exploit this tension to escalate their attack. All For One attempts to steal Hawks' Quirk but faces fierce resistance. Amid the chaos, reporters risk their safety to cover the battle, showing the world that the heroes continue to fight and that hope remains.

The episode ends with the heroes' resolve to defeat All For One, setting the stage for the next climax in the confrontation.