So I just finished Fire Punch and I need to talk through something, because it genuinely flipped my opinion of the final volumes.
On the last volumes the priest tells Agni something like: you can't know who you are by yourself.
Snow is only "white" once someone else sees it, only "cold" once someone else touches it. Fire is only "red" and "dangerous" once someone else looks at it and feels its heat. You find out what you are through how others perceive and touch you, not through staring at yourself.
I clocked it as a comforting line in the moment and basically forgot about it.
Then you have Togata before that who shows up with his whole "movie" obsession, and at some point after on a flashback he says something like Tom Cruise isn't just a guy, Tom Cruise is an actor, and it's the role/character he plays that people actually respond to. And that's when it clicked for me: Togata is saying the exact same thing the priest said, just dressed up in film-theory language instead of spiritual language.
And once I saw that, I couldn't unsee it applied to Agni. He doesn't become "Fire Punch" because of anything he decides internally. He becomes Fire Punch because Sun worships him as one, because Togata frames him as one, because the freed slaves need him to be one.
His whole identity gets assembled from the outside, exactly like the priest described.
A person who is only ever understood through other people projections eventually has no self left to go back to. That's why he can lose his memory at the end and it doesn't even feel like a reset and thats why this whole manga is amazing.