Nope, the blessing's condition for stopping is "burning thing dies". As long as Agni doesn't die the flames won't stop - even more now that Togata, the only person who new how to extract the part of Agni's brain where his blessing is located (so that he could regenerate the non burning part) is dead.
Yep, this is without doubt a tragedy.
... She literally just... UP AND DIED ON THE SPOT. That really puts into perspective how badly the fire burns him huh.
Yeah right...
I think her regen ability was enough to fight the flames like Agni does, except that Agni is bound by his "promise" with his sister (and now Togata), and Togata wasn't ^^'
Cuz in the first chaps it was shown Agni can stop the regen if he focuses
Fire Punch... and his fire Punchess... oh my god. Someone remind me, do the flames go out if Doma dies? They probably don't as Agni is still on fire, but... hot damn... no pun intended.