Atom, also known as Astro Boy in English, is a highly advanced robot with incredible powers, created by Dr. Tenma after the death of his son. Atom serves as the protagonist in the series 'Tetsuwan Atomu' (Astro Boy), which is set in a futuristic world where humans and robots coexist. Atom possesses a kind heart, strong sense of justice, and the ability to perceive human emotions, leading him to protect humans from various threats while exploring themes of humanity and technology.