Tenchi Muyo! is a Japanese anime created by Masaki Kajishima. Initially "Tenchi Muyo!", and its spin offs "Tenchi Universe" and "Tenchi In Tokyo", premiered on Toonami from July 2000 to November 2000 and later rebroadcast in the same programing block. On February 23, 2002, Tenchi Muyo! aired on Adult Swim’s action Saturday night lineup, airing at the end of the block at 1:30 am.
The series revolves around a boy named Tenchi Masaki, who accidentally frees a space pirate named Ryoko from a cave. The princess of planet Jurai, named Ayeka (who is looking for her brother) is alerted to the news and confronts the pirate. After series of unfortunate events she and her sister Sasami are stranded on earth with a space pirate, mad scientist, Tenchi, Tenchi's grandfather, and a Galaxy Police detective.
- Tenchi: The Main Character. Lives in Masaki Shrine.
- Ryoko: Space pirate. Sealed in a cave for 700 years before released by Tenchi. Competitor for the love of Tenchi.
- Ayeka: Princess of Jurai. Competitor for the love of Tenchi.
- Sasami: Sister of Ayeka / Princess of Jurai. Well known for cooking skills.
- Mihoshi: Detective for the Galaxy Police.
- Washu: Self proclamed "Greatest Scientist in the Universe!" and mother of Ryoko.
- Kiyone: Only seen in the spinoff series, Tenchi Universe. She is the partner of Mihoshi.
- Ryo-Ohki: Pet of Ryoko. Able to transform into a giant space ship (and a pink and armour plated bunny in Tenchi in Tokyo).