The Legend of Heroes: Trails of Cold Steel - Northern War

To protect her hometown from the Erebonian Empire and to distinguish herself from her grandfather’s disloyalty, Lavie enlists in the Northern Jaegers where she’ll do whatever it takes to carry out the mission. Now this rule breaker must form a platoon to embark on a dangerous recon mission into enemy lines—will her mission be a success?

(Source: Crunchyroll)