Robust Health (頑健, Ganken?, localized as "Toughness"GO) is a Skill that are made up of anecdotes of "not receiving a wound on the battlefield" and "never becoming sick even once since birth". It is also a composite Skill that includes Poison Resistance.[1]
Arash, who is strongly endowed with the vestiges of the Age of Gods, was born with an especially robust health. END parameter is ranked up and attacks received have their damage reduced.[1]
