Far away in the universe, Mihoshi and Kiyone have gone undercover to infiltrate Ryoko's gang of pirates. But instead of arresting Ryoko, they try to see if there's any hope of reforming her. Back on the earth, Washu has finally discovered the true nature of Yugi. Sasami is shocked to find our her friend's true identity! Meanwhile, Sakuya and Tenchi enjoy their summer vacation together. But their happy days don't last long as Sakuya's mysterious past begins to haunt her.
Episodes 20-22: "Old Friends", "Real Friends?" and "Sakuya's Secret".