Tinzin is a powerful holy man of a Tibetan religious sect tasked with guarding the secrets of the Sanjiyan Unkara ruins. He holds critical knowledge for accessing the Seichi, the holy land and birthplace of the immortal Sanjiyan race, with a map to its location inscribed as a tattoo on his back. When Yakumo Fujii seeks to restore the lost memories of Pai, a Sanjiyan, Tinzin provides essential guidance, utilizing his understanding of mystical seals to assist in the memory restoration process. He directs Yakumo and Pai towards the Seichi, leveraging his role as guardian of its secrets to aid their journey. His religious order maintains the sanctity and concealment of the Sanjiyan holy land, positioning Tinzin as a key intermediary between humanity and the realm of immortal beings.