Lelei la Lalena (レレイ・ラ・レレーナ) - Gate: Thus the JSDF Fought There! (GATE（ゲート）自衛隊　彼の地にて、斯く戦えり)

lelei ia lalena, short hair, blue hair, aqua hair, hair between eyes, blue eyes, mature female, small breasts, anime screencap