Ost Horai

As the highest-ranked among the Spirit Tortoise's vassals, she walks the world in the guise of the Eastern Holy Country's empress. Her true existence is that of the 'Heart of the Spirit Tortoise,' directly carrying the creature's will. When the Spirit Tortoise's main body fell under Kyo Ethnina's manipulation and ran amok, she resolutely appeared before Naofumi to personally request that he subjugate it. Throughout the ensuing battle, she devoted every effort to supporting the Shield Hero's party, ultimately choosing to offer her own life to bring the catastrophe to a complete end. After her passing, her soul came to reside within the shield, continuing to guide Naofumi.