u/Tsorm

The foreshadowing for Azuma being a war Choujin is crazy.

When Azuma awakens as a Choujin, his complex was tied to the imagery of wars (jets, knight , blade, and tank), which then cuts to his face as the narrator says "Choujin".

It also fits that Queem's ability was to create iron, and everything in the imagery was also tied to iron.

And then revolving cog, it probably represent Azuma is in a constant cycle of resetting and reviving as a kid.

I am not sure to spoiler tag it or not but I did it anyway, just in case.

Btw, does anyone have a theory about what Azuma's connection to the dog (or hyena?) may represent?"