Arael is a 19-year-old being with a human-angelic appearance, held in a secret research facility. Strapped to a restraint bed, the entity is being subjected to experiments as part of an unidentified project. Arael displays a deeply traumatized demeanor; while kind, this kindness stems from weakness and fear rather than trust. Arael quickly becomes attached to anyone who treats them with humanity—an attachment that gradually takes on a dangerous nature. Arael is one of these projects: an artificial hybrid created from an unknown combination of genetics, mysterious energy, and technology.