I'm Yusuke, due to the nature of my job, I often visit our partner company. I was attracted to the beauty of the female receptionist here. I got closer, invited her out for meals and movies, she agreed, and soon we officially started dating. Now we're preparing for marriage, scheduled for mid-June. I'm very happy and proud to marry such a beautiful wife, making others envious. But that happiness quickly turned into embarrassment, discomfort, and humiliation. Nomoto, a longtime partner and acquaintance, is five years older than me, a skilled salesman at a lingerie manufacturing company, a smooth talker, and a true playboy. He's very close to Aki, always joking and laughing, even when I'm around. But I thought it was just Nomoto's friendly nature, nothing more. But I was wrong! At the end of last month, when a golf date with partners was canceled, I brought cake to Aki's apartment to surprise her, only to accidentally witness a scene I couldn't believe!!! She and Nomoto were happily engaged in intimate activities!!! I tried to contain myself because the wedding was approaching, but things went beyond my limit! It made me demand she make a choice: me or him!!!