Seiya Ryuuguuin is the main character from the light novel series "Cautious Hero: The Hero Is Overpowered but Overly Cautious." He is summoned to a fantasy world to save it from destruction, but his extreme caution often leads to humorous situations. Seiya is known for his meticulous preparation and reluctance to engage in battle without being fully equipped. Despite his over-the-top cautiousness, Seiya possesses immense strength and combat skills, making him a formidable hero. His interactions with Ristarte, the goddess who summoned him, highlight the contrast between her more carefree attitude and his serious demeanor. This dynamic adds depth to the story and contributes to its comedic elements.