My Hero Academia Season 8 Episode 4 English Dubbed Episode Title: Quirk: Explosion!! Episode Description: Before Quirks existed, twin brothers are born; the older turns violent while the younger, Yoichi, dreams of heroism. Inspired by a villain, the elder becomes “All For One,” kills the Luminescent Baby, and later his brother, whose power lives on as “One For All.” In the present, All For One unleashes his Quirks against Bakugo, but Bakugo detonates explosives within him, causing his powers to rebel. All For One regresses into an infant and vanishes as Bakugo, exhausted, raises his fist and tells Izuku to “give him hell.”