Daikirai Na Douki Wo Metottara summary:

Office worker Kaname can't stand his coworker Shinonome, but when a work-related circumstance arises, they find themselves unthinkably entering into a one-year contract marriage?! Expecting the worst, Kaname and Shinonome try to cohabitate, however, after an extended argument, they kiss, in the heat of the moment, and both become extremely aroused! What will happen when the company's famous duo crosses the line on their first day of marriage?!