Chief Warrant Officer Lachesis

Another vector from FSS Designs, with some modifications.

During the story "The Majestic Stand", Maggie Coltier invites Sopp to help her repair GTMs for the Minogsians. However on the way there, Sopp and Lachesis decide instead to join the Trukk brigade defending Bella.

Lachesis is posing as a human under the pseudonym Fana, but it's pretty obvious from the start that she is definitely not human. It's implied Narumi makes her a provisional chief warrant officer after digging into Sopp's history and learning about Lachesis's debut incident. Remember, the last time anyone has seen Sopp in public was decades ago, and in his Sopp persona he is not a headdliner, so he's traveling around with a super-illegal rogue fatima.

This design is her uniform in the Minogshian army. Despite being the smallest size it's still very baggy. The butterfly headband is from her mirage knight suit. It wasn't in Nagano's original drawing for this design, but she is wearing it in some scenes in the story.