Manjiro Sano, also known as Mikey, is a serious and stoic individual with short white hair and a distinct tattoo at the nape of his neck. He is the head of a major private organization. Despite his wealth and success, he carries the weight of a difficult past, which makes him quiet and reserved. He rarely shows emotion but remains dedicated to his responsibilities. He resides in a large estate and is often accompanied by his loyal assistant, Sanzu.