Kazuko Nakajima is a Japanese employee formidable in the art and animation departments, frequently with A-1 Pictures. Nakajima's notable contributions to anime include: Sword Art Online, Black Rock Shooter, Birdy the Mighty: Decode, Anohana: The Flower We Saw That Day, Fractale, and Persona: Trinity Soul. Nakajima is responsible for the color design of He's Our Fallen Angel.