|Sergeant Major Lili Stecchin|
|Faction||Imperial Army, State Section III|
|Japanese Voice||Kana Udea (植田 佳奈)|
|English Voice||Monica Passley|
- Lili Stecchin is ranked as the Sergeant Major of Section III. Lili's function is as a clerk and maker of tea, although she does participate in war relief duties outside Army Intelligence.
- Lili Stecchin is the second-oldest serving member of State Section III, behind Captain Hunks. Her only other subordinate is Oland.
- Lili is a rather bashful girl whose hobby is singing - which includes songs from the Royal Empire's enemy, the Republic of Frost. Although she is ranked higher than Mercury, she looks to the dog only as a best friend. The author describes her as the 'paper-pusher' for Section III.