Astro Boy is a science fiction series set in a futuristic world where robots co-exist with humans. Its focus is on the adventures of the titular "Astro Boy": a powerful android created by the head of the Ministry of Science, Dr. Astor Boynton II. Dr. Tenma created Astro to replace his son Toby, who was killed in a car accident. Dr. Tenma built and adopted Astro in Tobio's memory and treated Astro as lovingly as if he was the real Tobio. However, Dr. Tenma soon realized that the little android could not fill the void of his lost son, especially given that Astro could not grow older or express human aesthetics. After some time, Professor Ochanomizu, the new head of the Ministry of Science, notices Astro Boy performing in the circus and convinces Hamegg to turn Astro over to him. He then takes Astro in as his own and treats him gently and warmly, becoming his legal guardian. He soon realizes that Astro has superior powers and skills, as well as the ability to experience human emotions.
