Otto ni Dakare nagara, Furin Shimasu

"Am I just a sex tool for you?" He's a husband who only sees his wife as a sex tool. She's a woman who lives in fear every day because he seeks her for pleasure every night... They're a husband and wife who are at odds. On the other hand, there's a couple who is pressured to make children. A husband and wife who suffer from conflict with their mother-in-law. Gradually, the wife starts to behave erratically, and her husband becomes exhausted... In the midst of all that chaos, she meets him as if they're destined in the first place! The two people who are attracted to each other so as to quench their thirst. Exhausted and having nowhere to go, they finally... (Source: MangaPlaza)