Ore x Yome

Himekawa is 26 years old and has a beautiful girlfriend who wants to remain a virgin until she's married. He's lied to her and told her that he has a career with a company when in fact he works at the local convenience store. Ashamed, and wishing to power up his career so he has a shot at actually marrying his girlfriend (and her virginity), Himekawa replies to a want ad and is surprised to get an immediate response.

The response comes from a dating services company that wishes to test their computer dating algorithm, and he's a perfect match for the no-nonsense Ino-san. He can get a job with the company if he can validate their algorithm by getting Ino-san to agree to marry him within a month!