Reaper doesn't take kindly to people intruding in on his space. He made sure that the place looks very stand-offish from the rest of the luxhabs, clearly edited and tinkered with, so the fact that someone just waltzes in really grinds his gears.

He's not near the front door when Casey lets himself in, but he hears the soft creak of the hinges and senses the warm presence of the living. It's not like it's a special ability of his, but he seems to be much more attune to their presence after his own body warmth had all but disappeared.

Cautiously, Reaper makes his way out of the room he's in and dissolves into black mist, dropping low to the ground as he rushes out like a gale had ripped through the luxhab. A sharp whooshing sound follows as he fills the floor around Casey's feet, recognizing the kid.

The Reaper.

He chuckles lowly as he whirls away from his feet, solidifying into his original shape a few feet away from him. Most of his outfit is in tact, but missing his ammo and some belts. He'd been in the middle of inventorying his stuff.