"Cautious Hero: The Hero Is Overpowered but Overly Cautious" is a Japanese light novel series written by Light Tuchihi. It follows the story of Seiya Ryuuguuin, a hero summoned to save a fantasy world. Despite his immense power, Seiya is excessively cautious, often preparing for every possible scenario before taking action. The series blends action and comedy, showcasing Seiya's over-the-top preparations and the reactions of his companions, particularly Ristarte, the goddess who summoned him. This unique approach to the hero's journey highlights the contrast between traditional heroism and Seiya's paranoid nature, leading to humorous situations throughout the narrative.