The Last 5 Apprentice

Ever since they we're children's they were already trained by their parent's to fight, and to use swords and knife, and how to use gun's and electronic's, but there parent's suddenly disappreared when they were just in highschool,
When their brother's suddenly disappered they tried everything to take them back but as they faced the obstacle's thing's changed slowly, as they discovered a place that the world didn't reach to find, even in ancient time's.