Theo Cornaro is the protagonist of the anime series Grancrest Senki. He is a young and determined knight hailing from a small, oppressed village. With a strong sense of justice and an unwavering resolve, Theo sets out on a journey to bring peace to his land, which is torn apart by chaos and war. Armed with a powerful crest that grants him unique abilities, he aspires to become a great lord who can unify the realm. Throughout his journey, Theo grows as a leader and forms alliances to achieve his noble goal.