Reverie Metherlence, commonly known as "Ren" is an Edel-Raid.

Edel-Raids are an all-female species that look like Human women & can merge with Humans to become weapons bonded to them. Each Edel-Raid can only merge with one human at a time, &o be able to merge with someone else, the original human they've merged with has to be killed. All Edel-Raids are marked with a gem that stores all their power called Elemental Gelades somewhere on their body. A normal Human girl can become an Edel Raid by having an Elemental Gelade implanted in them. These hybrids are called 'Sting-Raids' but are not as powerful as true Edel Raids. Edel Raids are also capable of using "songs", which are the equivalent of magical spells. If the Elemental Gelade is removed then they turn into normal women.

Ren's true age is unknown due to Edel-Raids being able to live centuries longer than Humans, but she was sealed for 500 years & looks 13-15. She has a short stature with soft, pale skin, long eyelashes, green eyes & long light-blue hair with a very long black headscarf with white patterns across her scalp & wrapped around her hair. Ren has a green Elemental Gelade on her forehead.

Ren has a purple ribbon tied around her neck, & wears a knee-length, square-cut, long sleeved, dark-blue dress with puffed shoulders & flared sleeves. She also wears a pair of silver knee-high platform boots with 2 black buckles.

Ren has is cold, stoic, melancholic, emotionless & quite rude. She hates Humans, but also understands that not all Humans are bad. Like all Edel-Raids, Ren recharges her powers through sleep, which happens to be fairly often, & she dislikes sweet food. Ren has one true desire, to go to Edel Garden, a paradise for all Edel-raids.

She is a very powerful Edel Raid, she is a Shichiko-houji, whose powers are said to be the strongest of all. She commands the element of wind, both offensively and defensively, & when she is in weapon form, she takes the form of a sword on the right arm of the Human shes merged with.