Tenchi Muyo! War on Geminar

From the introduction: The Tenchi Muyo series is huge, and the canonicity may not be particularly clear to the uninitiated. This part of the series and Jump take place after the start of the main timeline and GXP. The story takes place in the world of Germinar, and you no longer need to worry about multiversal goddesses, planet-busting trees, and other such things for your stay.