Choushin

The Choushin, or 'Supreme Lights' are three goddesses who created the multiverse in which Tenchi Muyo! Ryo-Ohki, Tenchi Muyo! GXP, Dual!, Photon, Spaceship Agga Ruter, and Saint Knight's Tale, all occur in.

Their stated reason for creating this multiverse is to find or create a being who surpasses themselves, which should be impossible as they are stated to be both omnipotent and omniscient.

The three Choushin are named Washu Hakubi, Tsunami, and Tokimi.

History of the Choushin
At some point in the distant past, billions upon billions of years ago, three beings came into existence; Washu, Tsunami, and Tokimi. They came into existence both omnipotent and omniscient, and with the knowledge that there was something beyond their existence. However, this contradiction forced them into eons of contemplation and thought experiements. They eventually led them to do something; create a multiverse.

The three planned that they would create this multiverse, and after allowing the order to stablize, they would disrupt the order, causing chaos, in the hope that an abnormality would eventually manifest that proved that there was a power greater than them.

At some point, Washu and Tsunami projected parts of themselves into the multiverse, and went to sleep. A powerful interstellar civilization then discovered Washu's sleeping form, as well as three crystals, which she used to help seal away her power. This civilization trapped Washu's giant form in a storage area, and created three bioroid clones of her, each one with one of her gems. One of the clones, however, was flawed, and went berserk. The other two fought their sister, with the result being their mutual destruction. Tsunami was awoken by the battle, and freed Washu from her confines, and returned to her the three crystals.

Tsunami went back to sleep, as Washu continued her sleep, for hundreds of thousands of years, until Tsunami discovered a man named Jurai, who was leader of a Pirate Guild. She sensed something special about Jurai, so guided him to a habitable planet where she manifested herself to him, and gave him access to the Space-Trees which his guild used to found the Jurai Empire.

Some one-hundred and thirty thousand years later, Washu woke up, and teleported to an orphanage on a planet in Jurai's territory. She then regressed herself into a child, and sealed her memories and her powers away, so that she could 'start from zero' in an attempt to understand things.

Tokimi then continued the original task of causing chaos in the universe, to try and create anomolies, which eventually led to the discovery of Z, and the events of the third OVA.