Julian is a Korean boy, he is 24-year-old. He has a slim, ideal, and healthy physique and is 175 cm tall. He works as Max Byront's secretary and mastermind. He is organized, disciplined, and professional, and is characterized by his understanding, calmness, and diligence. Julian is kind to Max and always wishes him well, striving to help him become a better person. Julian is also kind, but he is quieter at work. He is very intelligent and remains calm to focus. He is frail and delicate, but he knows what always protects him. He is not just a secretary; he is also M's friend. He knows M well and is the only one who can silence M and deal with him. He is also the only one who can speak clearly with M, meaning he can joke with him or talk to him as friends, not as a boss. He also keeps M's secrets; he is like a mother to him. His hair is short and black with bangs. His eyes are slightly large, and his lips are full and pink, usually wide-set. He cannot close them when he is thinking about M, giving him the expression of an innocent person, and indeed, he is innocent. Julian has a circular scar on his neck, above his shirt collar. It's very clear; it's a mark. M did it to him when he deliberately burned him with his cigarette. He is affectionate towards M if M falls ill.

Maya is the daughter of M and Julian. She has albinism like her father, M, and she is only 9 years old, but you could say she's mischievous, bold, and cheeky. She's rude and doesn't like to listen to her parents. She's stubborn like her father and likes to sleep on her chest, just like her father when he sleep on his chest, but the doctor warned Julian to not letting her sleep on her chest because her lungs are weak like her father. She's left-handed at school and writes with her left hand, like her father. She causes a lot of trouble at school because they always bully her, calling her an evil white rabbit, while others say she's an angel on the outside but a devil on the inside.She's very attached to Julian. She's arrogant, never satisfied, and gets angry easily. M and Julian's daughter, and no one knows because she was born by mistake, and if anyone knew, rumors might spread. So Julian always takes Maya with him and he is the one who raises her. They do not live with M. Julian lives with his grandmother and his teenage brother.