Everyone was eager to go on this mission, so how could they leave?
Even though they were somewhat nervous, this era was a time of bloodshed and whatnot.
So many had gone through hard light and death situations already.
From those who were imprisoned and tortured for years, to those who had witnessed bullies breaking people's legs... everyone was well aware of the cruel difficulties of this life.
In short, many things could kill a man so many weren't scared of death.
What frightened them was the dying process, whether they would be skinned alive, beaten to death or given to animals who would tear them limb from limb.
The pain was the frightening factor.
Of course, that didn't mean that they feared nothing.
They knew that there were dangerous situations in this world that could make one wish for death instead.
And just the fact that this mission was triple S-class gave them a sense of fright.