She is a member of the Science Club and one of Yuki's underlings.

To save the universe, Tenchi is going undercover—at an all-girl’s school! Can he survive the attention of cute girls at this not-so-ordinary school and put the timelines back into balance? Join the harem and fun in this series of shorts! 
(Source: Crunchyroll)
 
Note: The anime is set in Takahashi, the sponsors for the show, as the city hopes fans will come on a "pilgrimage" to see the setting of the anime, and plans to sell goods and host related events.

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