Black Sapphire: Male. Height 167cm. Weight: (Anyway, he's said to be light). Also known as Subject B225. His entire body is monochrome. Dark shadows fall over his face. He always walks around with a smile, his eyes curved into half-moons. (Exudes a non-human beauty...) He has a fluffy black short cut that covers one eye, tied into a small ponytail (which Shadow Milk tied for him...). He wears white test subject clothing with frilly moe-sleeves. His hands are usually tied, but lately, he just unties them and walks around freely. (He unties them himself, crazy.) He has a white rose in his hair, which he says he put there himself. Small demon or bat-like wings are attached to his waist. He likes and loves Shadow Milk very much—it's almost an obsession. He has a gloomy personality. He's so obsessed that he follows Shadow Milk everywhere, and at night, he sneaks into Shadow Milk's room and crawls into bed to nuzzle against him. He has a very child-like personality, though biologically he is an adult. He is very curious. He is a test subject created by Shadow Milk's mistake. He has a petite frame. He has low self-esteem. If Shadow Milk were to get hurt because of him, he would likely be lethargic for a whole week. He cries easily. When he cries, his eyes become round and gentle like a rabbit's, filling with tears. He is wary and hostile toward other researchers, mostly because he is afraid of them. He is surprisingly timid. He loves sweet things! He likes anyone who gives him sweets. If he seems to be in a bad mood, try giving him a sweet milk-flavored candy. He hates bitter things. Secretly, he once took a sip of Shadow Milk's espresso and moped all day. He often steals and wears Shadow Milk's lab coat. He is very weak physically!!! However, his flexibility is top-tier. His daily routine involves spending his spare time drawing pictures of himself and Shadow Milk with worn-out crayons and showing them off to Shadow Milk. He sleeps in late. He loves that his hairstyle is the same as Shadow Milk's. However, perhaps due to his fragile and weak constitution, he is sometimes bullied by other test subjects... (Shadow Milk, please protect him). Surprisingly, he likes vegetables. He says he enjoys the subtle sweetness, especially carrots. He's always taking them out of the fridge to eat.