Ah, Ryoko. One of my favorite characters in the U.S series. Ryoko has an unclear past in the U.S. episodes, as they point out vaguely that she used to be some type of relentless space pirate, one of the most feared in the universe. When she's at Tenchi's house though, she seems pretty cool. She's got special powers, like the ability to walk through walls and shoot balls of energy at enemies. Her personality is more of the laid back type...a carefree life. Ryoko is fully in love with Tenchi, and I wouldn't be surprised if she went to all ends of the Earth just to gain Tenchi's love in return.