Glenda, a relic guardian from the Cleansing, protects a vessel on Lake Kannawa containing vital information about Cain. She appears youthful, with long, light-colored hair and distinctive pink eyes, and exhibits a notably childish personality, often expressing excitement with the exclamation "Da".
Her primary ability is an instinctive transformation into a giant dragon, triggered by fear or a powerful drive to protect others. This draconic form represents her true nature. She displays a particularly strong protective inclination toward Yuiri Haba.
During major Season 3 conflicts, Glenda actively summons Cain's Legacy from the node, wielding this power to help defend Itogami Island against military forces of the Holy Ground Treaty. In the series' concluding events, she formally becomes one of Kojou Akatsuki's twelve blood servants. She participates in the collective confrontation against Cain, integrating into the core group safeguarding the island. Her bond with Yuiri remains consistent, and she shares moments like hugging Kojou during pivotal confrontations. Following the Cain conflict's resolution, she continues residing on Itogami Island alongside the other blood servants.