Lili Stecchin is a sergeant major and the longest-serving member of the Imperial Army State Section III, known as the Pumpkin Scissors unit. Her background is largely unexplored, though it is known that she previously served in a military band. She functions primarily as a clerk and tea maker for the unit, aids Captain Hunks directly, and is also responsible for caring for the unit's messenger dog, Mercury. Despite her clerical duties, Lili is a capable fighter and has demonstrated the ability to hold her own against highly trained soldiers from other sections. She is a bashful and somewhat reserved young woman, with a hobby of singing that sometimes includes songs from enemy nations. She can drive a vehicle, though she becomes noticeably tense behind the wheel. A lighthearted aspect of her personality is her delight at finally outranking another human member after Randel Oland joins the unit, giving her a sense of having an underling. Lili's role in the story is that of a reliable support member who handles behind-the-scenes administration and occasional combat, providing steady presence within the team. Her development is subtle, centering on her growing comfort and small moments of personal pride within the unit.