Firandin, Troiatte

トロイアット・ギャバネスト・フィランディン

Troiatte is a playful and whimsical military artist from Grendan and one of the 12 Heavens Blades. Admittedly, he cannot be rude to ladies, regardless of their age. In battle, he manipulates a huge ball of light that shoots out multiple heat rays. Not much is known about him other than the fact that he trains Cauntia and her friends alongside another Heavens Blade, Ruimei. He often calls the latter by the nickname "Danna". Troiatt has only a brief appearance in the anime and does not have a huge role in the original novels either.
The Chrome Shelled Regios artbook shows her name to be written as Troiatt.