[At that, Mamoru laughs. It's dry and ridiculously offputting, but it's still there.] Wow, how didn't I think of that? You must be a genius.

Watch this, though. [He pulls at the half-torn nail in a way that at least doesn't reach deep enough to create a wound in the bed. Raises that finger, so it's visible, his thumb resting on the tip of his finger for his own reference.

(Really, he's doing the chef's kiss gesture, almost.)

Slowly and yet a lot faster than what you'd expect the nail to grow, it does until it actually digs his thumb. It looks terribly frayed, though, so he reaches for a nail clipper from his back pocket and evens it out.] Anything in your Rocket Scientist knowledge can explain that?