スズノミア

She's a mysterious girl surrounded by enigmas.
She hardly ever manifests in the real world and even when she does, she is often oblivious to it at first.
What is her true identity...?

official site

Suzunomia is in fact one of the Wills of Ar Ciel, and furthermore, her true name is Hymmnosphere, while her current name is a corrupted form of her traditional Goddess name, Suzunomiya. She is considered as one of the most important Wills due to her extremely high wave frequencies, and the fact that she is the Singing Will that keeps Ar Ciel filled with energy and alive, creating and supplying the Symphonic Power that both the Planet and the other Wills need to keep themselves alive./