One-Punch Man season 3 was initially announced in August 2022, with scant details provided, including the animation studio responsible. Following the conclusion of season 2, it became apparent that season 3 would likely cover the Monster Association arc from the manga, a sprawling narrative spanning nearly a hundred chapters, teased in the final episodes of season 2.
The announcement of season 3 coincided with the conclusion of the Monster Association arc in the One-Punch Man manga, strongly suggesting its intention to faithfully adapt this extensive storyline. In the trailer, a pivotal battle from the early stages of the arc is featured, accompanied by narration delving into the fundamental concept of Limiters within the series.
In the trailer, viewers witness a confrontation between Garou and two formidable monsters, Bug God and Royal Ripper. These Demon-level creatures are dispatched by the Monster Association in an attempt to enlist Garou's allegiance, a recurring theme explored in season 2. To demonstrate his monstrous nature, they demand Garou to eliminate a child named Tareo. However, Garou defies their command, sparking a fierce battle between the Hero Hunter and the monstrous duo. This scene is plucked from the early stages of the arc, possibly accounting for its inclusion in the trailer.
In the trailer, as Garou engages in combat, a narrator—presumably Dr. Genus from the House of Evolution featured in season 1—delves into the concept of Limiters in One-Punch Man. A Limiter serves as a cap on the maximum power a being can harness. Dr. Genus illustrates how excessive power can strip beings of their rationality and logical faculties, exemplified by the multitude of monsters encountered in the series. Intriguingly, Dr. Genus hints at these limits being divinely imposed by God, teasing the potential role of a character named God as the manga's central antagonist.
Limiters undoubtedly hold significance in the Monster Association arc, especially in its climactic moments. Thus, it's logical for the trailer to introduce this concept early to fans. As Garou's rampage escalates and his power increases, speculation arises about whether he, too, has a Limiter. However, answers to these inquiries must await the official release of One-Punch Man season 3, the premiere date of which remains undisclosed.