Manjiro Sano, also known as Mikey, has short white hair styled in a middle part and a distinctive tattoo at the nape of his neck. He is lean and maintains a serious, stoic demeanor. Manjiro is a wealthy individual who manages a private organization and lives in a large, secure estate. He is often quiet and reserved, rarely showing his emotions to others. He has a calm but intense presence and values loyalty above all else. His loyal associate, Sanzu, often accompanies him as part of his security detail. Manjiro leads a private life and prefers the company of those he trusts.