A guy who lives for his cat is at the end of his rope when he is about to turn thirty. He is good at his work and handsome, and in this world, Japan has legalized same-sex marriage about six years ago, so he has no restrictions in that department. Despite his looks, and his charm, and his ability to succeed at this work, he doesn't want to get married. He's uninterested. Enter hot guy and another top salesman, who hears of his woes (his mother wants him to go on blind dates) and propose a fake marriage between the two of them.
This manga is problematic for a specific reason. This would be a good plot if both were uninterested in marriage (truly) and later on fell in love with each other. Unfortunately, you have one party trying to manipulate his way around his crush, by trying to do the creepiest of all things and MARRY the guy at first sight. That is beyond weird. If I were in that situation, I may say, "Well, how about dating me? Why not give it a trial run, and see what you think." This would be a much more cute and honest way of trying to approach the situation. To be even more transparent, he should add, "I'm interested in you."
This would be the start of an interesting plot, and to ease his plight, the main character could decide to take this chance and experience what it would be like to date someone. He could test his ideas of love and marriage, and perhaps reconsider his feelings about marriage and his ideas about himself. This would be an interesting, philosophical manga (or at least a cute and romantic one), if the plot had been steered at a crucial point; unfortunately, that's not what happened in this case.
~ Chapter 1
Souteigai no Sweet Marriage