This isn't spoiler, just some of my prediction about the story.
That town is actually controlled by demons, the chief is the demon that using mind controll on villagers and chant the spell that 'a person with black hair and eyes must die'
Actually the legend about black hair and eyes tell that the person is a hero to subjugate the demon king.
The world is harsh since there are demons all over the place to manipulate the situation so that one day they could conquer the world, but since they're few in numbers and not everyone are strong enough to overwhelm others, so they try to hit where it hurts....and demons could outlived any other races so they could just take it slow.
The church of light where their objective is to subjugate demons send a holy warrior to subjugate a hoard of goblins but it turned out that they're much stronger than the intel said so she got into bad spot and become damsel in distress for the true hero to come in rescue.
The story could fold in different ways but some interesting ways would be MC subjugated the demon king and got betrayed by the authority so he become avenger instead to fight high echelon in society. Or MC liberated many races and finally building up the nation to fight against demons because only power of a person could do as much, it would be better to lead people to the war.
Well if it's some third rated story then it'll ended up becoming a leveling, farming, and harem.
dude I wish that I could draw better than the current me so I could have my own comic....well I might need few more years to actually achieve this goal.