Gran lives a routine life on the island of Zinkenstill in the Phantagrande Skydom, accompanied by his friend Vyrn. He is driven by a letter from his missing father, pointing him toward the legendary Estalucia, Island of the Astrals. This goal fuels his daily sword practice and his inclination to help others. His quiet existence shatters when he encounters Lyria and Katalina fleeing the Erste Empire. During their escape, Gran suffers fatal wounds shielding Lyria from a Hydra controlled by Empire officer Pommern. To save him, Lyria forges a soul link, binding their destinies together. Pursued by the Empire, which seeks Lyria's power to control primal beasts, Gran leaves Zinkenstill alongside Lyria, Vyrn, and Katalina. As captain of the airship Grandcypher, he leads his crew across the skies. Gran's journey focuses on reaching Estalucia while confronting threats from the Empire and other adversaries encountered en route. He wields proficient swordsmanship and can access the power of Bahamut. Personality-wise, he displays steadfast determination towards his ultimate objective and a consistent willingness to aid those in need.