It's So Sweet When I Marry My Organization's Nemesis.

Synopsis

"...I hate you!" "What a coincidence. So do I." The two once belonged to opposing organizations of supernatural power users, and fought for their own opposing goals. Roushi Saikawa, also known as the "Feather Hunter," and Ritsuka Yanagi, the strongest supernatural power user known as the "White Demon." The two spent their days battling each other and had no normal social experience, but... "I love you, Rou-kun." "Me too, Ritsuka." After their organization was disbanded, they somehow started dating and then got married! Is their hatred 100 times more adorable? Now, they are the epitome of a lovey-dovey couple, kissing each other at the door every morning when they go to work. But the husband had just one problem. That is, he had never shared a bed with his wife... In other words, even though he was married, he was still a virgin! This is the story of the hardships faced by such a husband, who gets caught up in numerous troubles but continues to make desperate attempts to deepen his love with his strict wife. (Source: Kadokawa, translated)