Origin
Hiro fell into thought when he saw the previously absent additional information. With his now unchangeable job class, the bloodlines that suited him would probably be Demon and Beast. The Dragon bloodline would be more suited for knights, the Dwarf bloodline was proficient in weapon crafting matters, and the Elf bloodline was definitely most suited for mages.
He thought twice. If he were to choose Beast, the special Raging status would increase the speed of his combo. However, that was only if the Raging status was active. Furthermore, attacking in a barrage would require quite a lot of Health Potions and his combo would end if he stopped to consume a potion.
But he wouldn't need to think about such a problem if he chose Demon. With the lifesteal ability, he wouldn't need a lot of, if any, Health Potions. As for his attack speed, he could just collect buff cards.