Omega is an abrasive guy who's love is fast and heavy so he always gets dumped. Tries going to a matchmaker and results are slow. In the interim, he meets up with a former middle school classmate who he once had a falling out with. Former mate hates him because he made fun of him for liking an anime character. Omega doesn't care about that really anymore, but can't reconcile due to the both of them having stubborn natures. Omega has a badly timed sudden heat and former mate sees him, and it turns out the former mate is an alpha. They have set, but still don't like each other. Over the corse of them having to spend time together because of their job, and having sex a few more times, they gradually form feelings for each other. And as it turns out, this alpha is the one most recommended by the matchmaking agency.
Unmei no Tsugai ga Omae da Nante