An 11-year-old prodigy with an IQ of more than 180, Marty has a photographic memory, as well as a flair for learning different languages. However, he has many shortcomings as well. A physically-weak and lazy boy, he dislikes exercise and just loves playing video games, not to mention he is picky with food.
Although he grew up in a typical family, he discovered he had what appeared to be mysterious psychic abilities after he was kidnapped by the Black Armor troops. Since then, he could no longer enjoy a carefree childhood like an ordinary kid could. He has to be protected by World Peacekeepers and help the team prevent disasters and save lives.