Author: Kyria d'Oreyn
He accompanies Meidani and Yukiri as they walk through the White Tower, but keeps space between them so as not to overhear what they are talking about.
(Reference: Crossroads of Twilight, Prologue)
"Leonin should not have been able to hear a word, but he could feel Meidani's mood, of course, and he moved a step farther away. While still keeping watch along the corridor, of course. A good man. A wise man." (Yukiri on Leonin; Crossroads of Twilight, Prologue)