She is commander of the battleship Eternal Princess.

Yuna Kagurazaka won the interstellar Galaxy Fraulein contest to become the Guardian of the Light. After defeating several threats to galactic peace (As seen in the PC Engine games), old enemies have framed Yuna for attacking and demolishing her hometown. Yuna's friends now must attempt to rescue her from her pending execution, with comedic results.
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(Source: Anime News Network)

[Wiki (jp)](https://ja.wikipedia.org/wiki/水谷優子)

Wife of [Mizuho Nishikubo](https://anilist.co/staff/102460/).

Passed away due to breast cancer on May 17, 2016.

Just when everything seems peaceful again for Yuna and her friends, a new enemy appears in the form of three robotic sisters. Yuna must once again become the Savoir of Light to fight this strong, new evil.
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(Source: Anime News Network)

Princess Mirage