Truth

Yui relayed the news to Rufus and Reiji… 

They immediately understand that she's referring to the members of the Crimson Reapers that they have left unconscious on the ground.

"Just what kind of crimes did they do to deserve to die?" Rufus was curious. 

Although it's not a problem for him to kill, he wanted to know the sins they've made to deserve such treatment. 

He avoided killing them before since he's not sure about their crimes whether they were truly bad people or not… However, it seems that his worry was for naught.

"Human trafficking… They are the dogs of the Count… Urgh… I almost accepted that mission before…"

Yui answered which baffled the two…

They understood the graveness of human trafficking crime… They indeed deserve to die. Who knows just how many victims they captured before.