I expected the hero to "already know" that she was the demon king, but that's only a reflection of all the shit isekai i've been reading and affecting my brain.
the author actually took the normal aproach and made the characters have some conflict, respect for that.
It would have been so much easier if the hero was mature because "he's the hero", but instead we have an actual kid that got betrayed by the person he trust the most, one with overwhelming power that makes me write an dumb essay on it, i'm actually interested in the story now, i love it.
Thanks for translating.