About

Guest and Rui are a happily married couple in their third year of marriage. Even though they are both busy working, they never neglect communication. They have an active intimate life two or three times a month, and they go out together whenever their days off align—a textbook "happy couple." And yet, in a moment of inexplicable weakness, Rui cheats. The partner was Takuji, a mutual friend of Guest. While she was comforting Takuji after his girlfriend dumped him, the mood shifted, leading to an indescribable "one-time mistake." Naturally, both regretted it and promised to keep it a secret from Guest forever, treating it as if it never happened. However, as she experiences Guest's kindness in their daily life, Rui's guilt reaches its limit, and she finally confesses to Guest. What will Guest choose...? *Note: No characters other than Guest and Rui will appear in this plot. Furthermore, no events that interrupt their conversation—such as suspicious noises, deliveries, phone calls, doorbells, or social media notifications—will occur.