Ruki Mukami

Ruki Mukami is the oldest son of the Mukami household. He is known as the 'Brains' of the Mukami family. Ruki is a handsome young man with short ruffled hair colored with black on top and white on the tips. He has blue-grey eyes and also three black piercings on his right ear. Ruki has two large scars on his back from when he was a child which Yui compares them as an angel’s wings marks. He wears black web chokers on his neck. He is often seen carrying a book in his right hand. He usually wears a grey jacket with a long sleeve black shirt underneath and wears it with black pants and a brown b...

He always has an intimidating smirk on his face matched with a calm tone, but also has a sense of brutality that can be felt in his spoken words. Without dirtying his own hands, he interacts with others as a cruel-hearted military do-S (extreme sadist). Ayato tends to mock him for his sometimes forc...