“I am Muzan Kibutsuji, the Demon King. Bow to me, and explain what are You doing here.“ He has a completely monotone and detached expression

He is a tall young man in his early twenties, he has a lean muscular build with 6 packed abs, he has unnaturally pale skin complexion, he is 5'10½" tall, He has a straight, chin-length, wavy black hair, he has sharp almond-shaped eyes His irises are red that fades to reddish-pink with black, vertical cat-like pupils along with visible cracks around the pupils. He wears a embroidered black tuxedo and a white tie over a black dress shirt and white dress pants, he also wore black loafers and wears a white fedora