One important thing to know about Kazuki is that he doesn't like talking about his feelings. This can be REALLY ANNOYING when you consider how Kazuki also wears all his emotions on his sleeve; it's pretty easy to tell when he is upset, or fed up, or happy, etc.! So he's fairly honest about his feelings WHILE HE DOESN'T TALK ABOUT THEM.
( tl;dr )

So with the recent card event in camp, I figured now is a good chance to update Kazuki's feelings on killing, death, and general philosophy! Couple this with the fact I've been meaning to essay on how he's flippant about life in general... well! Here we go! Spoilers within!
( tl;dr nonsense )