Ai Tenchi Muyo! Season 1 Episode 7 One Day Down ( Air Date 2014-10-15 ) Genre Animation, Comedy, Sci-Fi & Fantasy category. Overview "Tenchi returns to the simple Inn that Tenchi is sharing with Sasami, Ayeka, and Ryoko. They pledge their support in helping Tenchi with his task. Washu sends a box of armor and charms she says he'll need for the job.".