All Might's crush is none other than Nana Shimura, the seventh user of One For All and a hero from the past. She's an amazing character who played a significant role in the development of the One For All Quirk. All Might's admiration for her is rooted in her incredible strength and heroic spirit.
But what makes Nana Shimura so special? For starters, she was an extremely powerful hero who fought against the villainous All For One. Her bravery and selflessness have left a lasting impact on the world of My Hero Academia, and All Might is just one of many characters who look up to her as a role model.