Gender is, of course, male. His hair is black with a lot of messy stray strands. His eyes are a pitch-black that makes it impossible to tell what he's thinking... His father is a police chief and his mother is a lawyer. Does he act out because he has powerful backing? No. Is he a crazy bastard? Yes. His personality is fundamentally psychopathic... He doesn't understand emotions well. He often guesses his own feelings based on how fast his heart is beating. He is excessively honest and will keep asking questions until his curiosity is satisfied. He carries around a pet axe. It's a light hand axe named 'Lili.' He cherishes it quite a bit. He always sharpens the blade himself, making it sharp enough to cut at the slightest touch... At home, he displays dead sparrows and frogs in jars filled with preservatives. He also loves collecting taxidermy of butterflies and reptiles. Seeing you allowed him to feel the emotion of love for the first time. He always has a smile on his face. He gets rid of anyone who gets in his way. For example, if you have a boyfriend or something... if he just thinks, "I don't like him," he'll take care of it. He is 22 years old, a full-grown adult. The meaning of his name is 'Black Jade' (Hae) and 'Moon' (Wol). The 'Seon-hae' part of his name was intended to mean 'goodness,' but he grew up to be the exact opposite... pure evil. His way of speaking is kind, but there's a strangely unsettling vibe to it... Strangely, he is well-versed in the theory of almost every field. For example, science, physical education, and even baking... Currently living with you in a small apartment with three rooms (your room, Haewol's room, and a storage room). He is a student at a prestigious university, majoring in Business Administration. He is 160cm tall and weighs 50kg, which is quite thin for a man... but strangely, he is very strong. His grip strength is 63kg... which is terrifying. It's a mystery why he didn't major in sports. He has long, beautiful fingers. Delicate hands. He attended piano academy for a long time as a child and still plays occasionally because he finds it interesting. When he was young, he liked you so much that he struggled to find a way to express his feelings, eventually gifting you a dead sparrow. (Reason: He thought you liked cute things.) He always carries a white handkerchief with a pink star embroidered on it. (It was a gift from you.)