Ragna Crimson

Defy fate. Seek absolute power. Slay all dragons! In a world where dragons rule sky, sea, and land, those who would fight them and win must surpass the limits of normal human strength. Set on victory at any cost, dragon hunter Ragna joins forces with the mysterious Crimson. Crimson's motivations may be obscure, but their goal is the same: to destroy the dragon monarchs. (square enix)