The core rules for the "Tenchi Muyo!" RPG.
From the back of the book:
This role-playing game is based on the 14-episode video series, Tenchi Muyo!, conceived and developed by Hiroki Hayashi and Masaki Kajishima. You can take up the role of Tenchi, Ryoko, Ayeka, Sasami, Mihoshi, Washu, Yosho, or even Ryo-Ohki; alternatively you can play the villainous Kagato or Dr. Clay, or even a character of your own design. The game features the intuitive and easy-to-learn Tri-Stat System. game mechanics, which is fully compatible with Guardians of Order's other anime role-playing games.