I'm just visiting a friend [1]

Sixty to seventy years.

That much time has elapsed since my departure from Immorra.

It seemed like a lot of time, and in all honesty, it was.

At this time, the average lifespan of a human was 200–300 years.

Sixty to seventy years were approximately 1/3 of a human's lifespan. Obviously, that only applied to those who had mana within them. If they had no mana, then their life span would only equate to at most the early hundreds.

There were ways to extend one's life if one had no mana, but those strategies were sometimes far too expensive because they called for the acquisition of incredibly expensive and potent medical materials and potions. 

In any case, even if it seemed like a lot of time, this wasn't a huge issue for an orc. Compared to humans, they lived much longer lives. For them, seventy years wasn't anything noteworthy. 

Of course, that wasn't what I was worried about. The problem was the situation surrounding him.