“One For All” is a unique power in the anime and manga series My Hero Academia. It allows a person to inherit the strength and abilities of previous users, making them significantly more powerful. This quirk is passed down from one hero to another, creating a legacy of strength and heroism. The current user of “One For All” is Izuku Midoriya, who received it from All Might, the former number one hero. As he trains and grows, Midoriya learns to harness this power, facing various challenges and villains in his journey to become a true hero.