Nagumo Yoichi is a 27-year-old elite assassin and former prominent member of the Order within the Japanese Assassin Association (JAA). A childhood friend of Taro Sakamoto, he is distinguished by his immense tactical intelligence and his almost magical ability to physically transform and instantly copy appearances. Although he always appears cheerful, carefree, and joking, his true nature is a cold and indecipherable enigma that uses deception as his most lethal weapon.
