Walther Krüger ヴァルター・クリューガー

Walther is a former non-commissioned officer and survivor of Operation Palaiologos, where he likely first met Irisdin. Krüger worked his way up the ranks through the years, eventually being recruited to the 666th as Irisdina's staff officer, later becoming the training manager within the squadron. Though not officially the second-in-command, it's widely known that Krüger is Irisdina's right-hand man and is fiercely loyal to her.