And, no. I’m not talking about my theory that he and Detective Tsukauchi are romantically involved. I’m talking about All Might’s origins, or more specifically, Yagi Toshinori’s origins as well as how he first met Nana Shimura.
Let’s be honest here, even with All Might’s appearances in My Hero Vigilantes, we know very little about his family life. Wait. Does Yagi have a family? They’ve never been referenced, hinted at, or acknowledged in any way. No phone calls or secret visits or confidential reveals to Deku, nothing. So, what’s up with that?
Well, we know Yagi was shown to have a high sense of morality in a flashback where he’s presumed to be middle school aged. That same flackblack may also be when Nana decided to make him her successor. But, that still doesn’t explain how Nana met Yagi in the first place. So, here’s my theory:
Mammoth Base Opera Castle 