Ataru Kinniku, also known as Kinnikuman Soldier, is a prominent character in the anime and manga series Kinnikuman. He is the older brother of the protagonist, Kinnikuman (Suguru Kinniku). Ataru is known for his strong sense of justice and his formidable fighting skills. He initially appears as an antagonist under the guise of Kinnikuman Soldier, leading the Soldier Team in the Throne Succession Arc. His character evolves throughout the series, revealing a deep bond with his brother and a dedication to protecting their planet from various threats.