Crimson Rose: Zach
Zacharyah, or Zach, for short, is an orphaned child, who doesn't really remember who his parents were. Instead, he was raised by Lou, the chief swordsman of the noble house of the Saphirs. Lou took him under his wing and taught Zach what he knew, swordsmanship, which Zach treasured, training relentlessly and becoming quite the capable fighter.
Things took a turn around the time Zach turned 12, when Lou came down with an illness, and passed away. Zach is left once again by himself, having only the sword skills he learned from his adoptive father as a means to survive.
He's given a chance when the head of the Saphir family offers him a job to teach the daughter of another noble family, the Bulwarks, who wishes to one day become a mercenary.
However, despite being almost the same age, she turns out to be quite a handful. Zach doesn't back down, of course.
In a world where humanity's territory equates to only a fraction of the real world, in a world filled with mythical beasts and beings with unexplainable powers, how will these children fare, walking the path of blood? Only time will tell.