Beddo no Shita no Himitsu

Even after Colonel Michel Rosenberg and Hans Schuyler had their honeymoon, their life together was still filled with H-action! This seemed to have affected the Defense Army as a whole. Love started blooming everywhere: between the enemy commander and the colonel’s assistant, Miller; the instructor and his new soldier; the intelligence captain and the enemy’s spy; the mercenary captain and the elite chief of staff. Couples were accumulating in droves!
(Source: Houbunsha, translated)