Gruyere rules as King of the Kingdom of Solgest and wields significant religious authority as one of the elected high priests of the Levetian faith, commanding the cult's military forces. His immense size requires transport via a portable shrine. An aristocratic king, Gruyere enthusiastically pursues eclectic hobbies, though his grasp of common sense in certain situations appears unconventional. He has a daughter, Tolcheila Solgest, described as his adorable and cheerful child, especially when discussing food. Seeking to counter regional tensions involving the Kingdom of Cavarin, Gruyere extends a diplomatic invitation to Prince Wein Salema Arbalest of Natra to form a strategic alliance. Their collaboration involves coordinated military campaigns against shared adversaries. During their political negotiations, Gruyere expresses admiration for Wein's long-term strategic vision, aligning Solgest's objectives with the outcomes of Wein's intricate plans.