A Chiss officer of the Junior Captain military rank was the initial mate of the vessel belonging to the Xodlak family's Midsummer. This first officer was a member of the Xodlak family and possessed the Blood rank.
In Timothy Zahn's 2021 novel, Thrawn Ascendancy: Greater Good, the second book in the Star Wars: The Ascendancy Trilogy, the first officer made an appearance.