Lunaria is the False Spirit of Light and doppelganger of Vritra.
The False Spirits were artificially created using a sample of the Essence of the Master Spirits and the DNA of the animals from which they are based on in order to fill in missing segments. They were created by a scientist in an attempt to create his own guardian spirits as none had wanted to partner with him. His main attempt was to create perfect copies of the Master Spirits, but he was only able to create doppelganger-like beings. However, he was unable to recreate an energy spirit.