Tenchi Masaki is a regular earth kid who lifes a somewhat average life. He lives in the mountains with his father and his grandfather. Tenchi's mother died when he was a child, but for reasons unclear in the U.S. version now airing on t.v. Also living with Tenchi are 5 beautiful alien women. I don't know from what race, but they all are pretty similar to humans, not to mention they all have a thing for Tenchi. The beautiful she-aliens are Ryoko, the most feared space pirate in the universe, Princess Ayeka of the Planet Juari, Sasami, Ayeka's sister, Mihoshi, an air head police detective...who knows how she got her job, and last but not least the Mad Genius Scientist "Little" Washu. During the U.S. series Tenchi Muyo, nothing important really happens. The series is based on day to day life as Tenchi fights off the 5 women(who knows why) and trys to keep on his toes while training with his grandfather.