Ryoko Hakubi is a main character in the Tenchi Muyo! metaseries. Ryoko is a semi-reformed space pirate who is madly in love with Tenchi Masaki, the main protagonist. She is always shown to have a very competitive relationship with Princess Ayeka, who also has a very strong romantic interest in Tenchi. Ryoko has differing abilities between the different continuities (the OVA, Tenchi Universe and so on), but her aggressive, emotional personality tends to remain the same.