Pathfinder:Wrath of the Righteous
Mix of 'hometown destroyed' (except it's not your home, you're just visiting when a demon attacks) and 'capable combatant' (you get drafted to help recovery and end up leading the counterattack because you're competent and keep attracting the attention of powerful beings who can lead you to mythic paths).
The shattered stage is set and there's a role you must fulfil