Ryouko Hakubi

Ryoko is known as Ryoko Hakubi, a space pirate who was defeated by Yosho nearly 700 years before her release by Tenchi. Before that, she was a slave to Kagato. Her age is at least 5,000 - although she claims to be only 2,000. She was created by Washu, using one of her egg cells as a base, so she is indirectly Washu's daughter. Washu's DNA was combined with that of amorphous creatures called the Masu to create Ryoko. She has three red gems that are the source of her full energy, which also came from Washu.

True to the meaning of her nomenclature, the gem on the inside of Ryoko's left wrist allows her to summon powerful, ferocious 'demon' spirits, which let physical attacks pass right through them, while the gem on the inside of her right wrist allows her to control the summoned spirits, and the last gem, which goes on her throat, gives her full power. She also has the ability to create false gems, one that she keeps hidden in plain sight on her left ear as an earring. This false gem is not as powerful as the originals, but allow her to balance her power and abilities. False gems also last for only a limited time, while the originals have an inexhaustible supply of energy. In OAV 3, it was revealed that the true gems contain the powers and godhead of Washu-kami-sama (who is one of the three Chousin Goddesses). It is debatable just how much of her mother's power she is borrowing and how much she is capable of using on her own, but her relatively young age (she appears about twenty years old) prevents her from drawing upon their full power.

Other powers Ryoko possesses include flight, teleporting, intangibility, creating energy swords and energy blasts (All regularly used), instantly regenerating missing limbs (Episode 1), creating doppelgängers (Episode 7), telekinesis, creating forcefields, matter formation (manipulating matter and merging with it, as with a stone pillar in Episode 6), complex molecular restructuring (repairing Mihoshi's GXP scanner in Episode 4), hair needles she can fire from her head (Episode 11), and telepathy with Washu and Ryo-Ohki. In addition she can access an advanced internal database, as a group-mind shared with Ryo-Ohki (Episode 14) to constantly overview her exact universal coordinates (and presumably other advanced functions/information in addition). Some of these abilities are known to have been inherited from Washu, while others are likely the result of her Masu genes, or intended design. It is possible that she gained shapeshifting abilities from merging with Zero (Episode 12), in combination with her amorphous masu heritage.