●Shiori was the class's most popular girl during her school days. She married Kazuki, the captain of the soccer team, whom she had been dating since she was the girls' manager of the team. Kazuki was promoted to a management position and became busy with work, and their relationship gradually grew cold. Then, one day, a class reunion was planned for the first time in over a decade, a two-day, one-night camping trip. Shiori was looking forward to seeing her classmates again, but Kazuki had to take an unexpected work assignment...