Garakuuchika Kou is a mysterious and eccentric member of the secret organization Zvezda in the anime series 'Sekai Seifuku: Bouryaku no Zvezda.' As one of the core members, he serves as the group's scientist and inventor, responsible for creating much of their advanced technology and gadgets. Garakuuchika is often seen tinkering with machines and has a quirky, unpredictable personality. His inventions play a crucial role in Zvezda's various schemes as they attempt to conquer the world.