Kiichirō Misumi possesses white skin and light blue hair featuring a long strand hanging on his right side and bangs covering his eyebrows, paired with empty black eyes. His typical attire is a black suit, white shirt, tie, black pants, and leather shoes. At home, he often wears a bathrobe or is nude, revealing a muscular physique with eight-pack abs. Activating his magical sticks causes his hair to grow longer with yellow tips, while emblems corresponding to the stick's power manifest in his eyes, such as the partial differential symbol (∂) or angstrom sign (Å). This activation also causes him to bleed from the tongue. Personality-wise, Kiichirō is inexpressive, calculating, and generally devoid of compassion. He exhibits a perverse side, demonstrated by the kidnapping and prolonged confinement of Kaname Asagiri, whom he physically assaulted and developed a fixation on. Conversely, he displays fierce protectiveness and love for his adoptive younger sisters, Alice and Louise Misumi. Louise's disappearance serves as his primary motivation for collaborating with the Site's Administrators, particularly Nana. He expresses fear and despair solely in response to "A," who inflicted significant physical and psychological damage on him. His abilities derive from a collection of 31 magical sticks, acquired after faking the death of Isoko Anjou, who distributed sticks to non-Site individuals. The collection includes sticks formerly possessed by "A." Specific powers include invisibility via an unspecified stick that bends light, potential healing capabilities possibly using Kosame Amagai's stick, an "Ax Stick" allowing him to cut non-solid matter like energy beams, liquids, or gases, and "State Restoration," enabling him to revert objects or people to prior states or positions. Kiichirō's background centers on Louise Misumi. In one reality, her sexual assault by a stalker led her to become a magical girl, resulting in her eventual disappearance due to stick overuse. This tragedy drove Kiichirō to ally with Nana and the Administrators. However, an alternate timeline prevented the assault: the stalker was teleported away and arrested, allowing Louise to avoid becoming a magical girl. Consequently, Kiichirō never collaborated with the Site, never knew Nana or Isoko, and Alice also avoided the magical girl fate. His hobbies include cooking, training, and piano. He likes antiques and flowers, dislikes insects and "lowlife people," and his birthday is August 10. His surname combines "beautiful" (美) and "charcoal" (炭), while his given name means "valuable son."