Two years of constant battle.
That's what Damien would've liked to call it, but it was more like two years of running around looking for people to kill, with a few interludes of actually killing them.
Though, that was just in his perception.
In two years, Damien slaughtered hundreds of Demigods. With the current numbers dwindling, that wasn't just "a few interludes," was it?
As he gained prominence on the battlefield and learned more about what happened in the time he was gone, he moved in accordance to his will and took out several great threats that the allied forces were wary of.
'They gave me so many titles because of that. God Killer, Divine Reaper…basically, they call me any and all things to say they're scared without actually saying they're scared.'
Their fear was granted. It was impossible for Damien to hide his league from their eyes, so the fact that he was a lower existence that could slaughter Demigods had spread far and wide.