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!

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!

After what happened to Tenchi, the girls are out for vengeance! Back on Earth, Sasami summons a battleship and Mihoshi sets and ancient genius free!