Following their romantic honeymoon, Colonel Michel Rosenberg and his partner, Hans, anticipate a tranquil life in the midst of war if not for the threat posed by Colonel Kingstone and his forces. However, a new challenge emerges with the arrival of Colonel Rosenberg's younger brother, Kurt, whose tyrannical nature surpasses even that of the colonel. Can Hans endure Kurt's harsh criticisms in this sexually-charged battlefield? Dive into the sequel of 'Koutetsu no Daitenshi' and witness how the affectionate couples navigate through escalating tensions and passion in the midst of conflict.