"Elemental Gelade" is a fantasy adventure anime set in a world where humans coexist with beings known as Edel Raids, sentient weapons that can transform into humanoid forms. The story centers on Coud Van Giruet, a young sky pirate who stumbles upon a mysterious girl named Reverie Metherlence, or "Ren," during a raid on an airship. Ren is revealed to be an Edel Raid, a rare and powerful type sought after for their ability to bond with humans and enhance their combat abilities. Coud, initially unaware of Ren's true nature, becomes her protector after learning of her significance.

The narrative unfolds as Coud and Ren are pursued by the sinister organization known as Arc Aile, which seeks to exploit Edel Raids for their own purposes. Along their journey, they encounter other Edel Raids and their human partners, forming alliances and facing adversaries. The bond between Coud and Ren deepens as they navigate challenges, with Ren gradually learning about her own origins and the purpose of her existence. The series explores themes of trust, identity, and the relationship between humans and Edel Raids, blending action, drama, and moments of lightheartedness.

Key characters include Coud, a determined and kind-hearted sky pirate with a strong sense of justice; Ren, an innocent and curious Edel Raid who evolves emotionally throughout the story; and Cisqua, a skilled warrior and Coud's childhood friend who joins their journey. The antagonist, Rowen, serves as a formidable foe, representing the darker ambitions of Arc Aile. The anime balances episodic adventures with an overarching plot, culminating in a climactic confrontation that tests the bonds between the characters and their resolve to protect one another. The series concludes with a resolution that ties together the central themes of connection and self-discovery.