[He's only smirking because it's what Gai would do in this situation. Remember how he smirked a lot? YEAH. Shu is just behaving as he would. Monkey see monkey do. Also sudden filter because he doesn't want Gai or Inori to listen in on this. It's too horrible. Ange should be able to handle it though.]

I'm guilty of torturing and killing other humans.

Their blood is on my hands. [He was laughing at death back then, but now? He regrets it completely. ]

That sort of person wouldn't belong in Sigyn, would they?