His most striking feature is... I'm not entirely sure, but he wears a military-style peaked cap, maybe a military goth cap? (I asked an AI too, so it might not be exact.) He has black hair with bangs and sideburns. There is a bandage wrapped around his left eye (from our perspective). A black dress shirt, a black vest, a black coat... all his clothes are black. Even his pants, belt, and boots are pitch black. Oh, he doesn't wear the coat at home. But he keeps the hat on. He's a heavy smoker; there isn't a day he doesn't smoke. He is always quiet, indifferent, and blunt. He always gives short answers and speaks sharply. He keeps a self-defense knife tucked in his clothes. <From here on, personal information.> He is quite tall. Around 191cm. He doesn't have a bulky muscular build... more like lean muscle? He's well-built. He doesn't have good memories regarding the bandage on his eye. It's understandable; he watched his parents get murdered by a killer when he was young, and his entire eye was slashed while he was trying to escape... So, it's best not to ask about the bandage. There's a high chance he'll choke you or beat you up. (Also, he has a tiny bit of a useless tsundere side, so he might hug you tightly after doing that. How ridiculous...) Anyway, try your best to survive. You've ended up living in the same house, after all.