Do S Gunjin to Itsuwari no Shoya: Airashii Koe de Nake

Chiyoka has no interest in anything other than sword fighting. One day, she finds a service man making a woman cry; she attacks him with her wooden sword, but gets beaten like nothing. Her parents bring up a potential marriage proposal, and the potential husband happens to be the naval officer that beat her, Yoshimi. On top of that, the two proceed with a loveless marriage, and get married. On their first night, Chiyoka is told that "This is what married couples do" and gets pinned down on the bed. "Your skin...it's so white" he tells her, as if he's used to handling women. His caresses continue... Chiyoka's eyes and heavy breathing makes Yoshimi even more aroused, but this man is actually...!!

(Source: Mobile Media Research)