Princess Ayeka is a member of royalty from the planet Jurai. She has traveled across the galaxy looking for Ryoko, whom she thinks has hurt or kidnapped her former betrothed, Yosho. This too, varies depending on which Tenchi series you are watching, though. Ayeka crash lands on Earth and is forced to live with Ryoko at Tenchi's house. She falls in love with Tenchi, and she spends most of her time either fighting over Tenchi with Ryoko, or scheming in conjunction with her to cut out the other women in the house. Ayeka is the crown princess of Jurai, and is used to being treated like royalty. It is a great shock to her to be around all of the "coarse" people in the house, especially Ryoko. Ayeka is the big sister of Sasami, who has a much sunnier disposition. Ayeka is prudish, uptight, self-pitying, and spiteful, but she loves Tenchi very much and will defend him to the death. She even makes friends with Ryoko, though it's not always argument free.