Upon seeing the thumbnail and playing the prequel thinking it was related, I actually thought Yuno was a magical love child of the prequel's heroines.
Though, the dark skinned adventurer in the prequel does have resembling features of being a victim of the monster warding conductions. Gray hair, tanned skinned, could she probably have history of being exploited, just not as long term and impactful as Yuno's? This is now my headcanon, adds a nice satisfying worldbuilding to my taste, I love it
Nevertheless, I was very disappointed that the prequel's MC was unheard of. I mean, hints of prequel events and character(s?) made some cameos and the literal heroine that saved the world wasn't even mentioned by the adventurers or library in the slightest? bleghh