Tenchi Masaki is an ordinary guy who accidentally releases a demon trapped in a forbidden cave. This "demon" has been imprisoned for hundreds of years, and now she wants revenge! Looks like Tenchi's in trouble!
Things get even crazier for Tenchi when a space princess take him and Ryoko captive! Looks like the poor guy will need a little help if he wants to return to Earth!
Ryoko finds a mysterious egg that leads to more space hijinks! Meanwhile, Tenchi and his grandfather work together to hone their sword fighting skills!
The arrival of a bumbling Galaxy Police officer leads to outrageous adventures, and Tenchi's vacation to the hot springs is sure to prompt an outbreak of nosebleeds!
When a dangerous space criminal comes looking for Ryoko, Tenchi and the gang must spring into action! They'll need a spaceship to give chase, and Ryo-Ohki might be able to help!
Life is chaotic at the Masaki household as Ayeka and Washu plant a spaceship, Ryoko makes a play for Tenchi, and Mihoshi is tricked into reporting back to GP Headquarters.
When Tenchi and his ladies are forced to watch his baby cousin, all heck breaks loose! Poor Tenchi is clueless, the ladies are hopeless, and only Washu can restore order to the hosue!
It's time for a trip to the hot springs! Unfortunately, there are a lot of repairs that need to be made before Tenchi and the girls can get wet and wild!
Tempers flare when Ryoko damages a robe that once belonged to Tenchi's dearly departed mother! Things get even worse when Ryoko's hurt feelings turn into a colony of shape-shifting creatures!
Devious Dr. Clay sends the robot Zero to abduct Washu, but once the lady robot meets Tenchi, she forgets about anything that doesn't involve the boy of her dreams!
Once again, Tenchi's life is thrown into chaos by the arrival of visitors from Jurai! This time, Ayeka looks to be headed for an arranged marriage unless Tenchi can win a duel!
Tenchi suffers a bout of heat stroke, and tempers run high when Washu puts Noike in charge of his care. Meanwhile, Noike's true intentions regarding Tenchi are revealed. Far away, a plot involving Mihoshi and Tenchi begins to unfold.
Mihoshi's brother Misao thinks that the notion that his sister is part of a harem run by Tenchi and wants to kill him. But Mashisu his adjutant, has other ideas.
Z, the progeny of Lady Tokimi moves against Tenchi and a big battle in outer space ensures. but Tsunami and Washu, discover Z's motivation for wanting to murder Tenchi they decide to move against her and a confrontation ensures that might destroy, Tenchi, Z and the universe.