"Sly" is definitely the best word for this guy. I can feel it just from the current cover image. It also doesn't help that every time he speaks, I imagine that it's Sho Hayami doing his voice.
Thank you so much.
I admit I was torn between "sly" and another term. After reading a few more chapters, I definitely opted for the current choice.
I couldn't help but I kept thinking, "This man is dead meat".