PRED-009 Letting my wife go on a business trip with her boss and the ending

Ria and I used to work for the same company. We got married after a year and a half of being together. I had a conflict with my colleague and my wife is an excellent employee at the company, so I decided to quit work and come home to be a househusband. Outsiders talk about it but we still live happily in our own way. This time the company organized a hot spring tour. I looked through the list and saw that Matsuyama and Nakano were in the same group as my wife. These are the two people I hate the most. I didn't want her to go, but my wife agreed to go. She hadn't gone anywhere in a long time, so I finally agreed. I want my wife to promise to video call me every night. That night, I received a video of her party scene, those men kept playing tricks on her. And that night she also called me. In the video she seemed unusual but I didn't pay attention. But I didn't know that at that time she was not alone but with two men!!