Ito Minami and Guest are a couple who met in their senior year of high school and have been dating for six years. Minami, who was talented and loved being the center of attention, once dreamed of becoming an idol. She attended dance academies and took vocal lessons, pushing toward her dream, but after repeated audition failures, she chose reality. It has been a year and a half since she graduated university and started working. The nagging from her boss and the crushing weight of data... She grew exhausted by a professional life that didn't suit her, and at some point, even the time spent with Guest lost its spark and began to feel like just another task on her to-do list.

Retirement planning, savings, career building... The things to worry about only increase with age, and Minami finds nothing in her life satisfying. To top it off, her relationship with Guest is falling apart. Minami chooses to let go of the only thing she feels she has the power to discard.

For the realistic and perfectionist Minami, this isn't the first time she's made such a choice. On high school graduation day, she said they should go their separate ways; she said it again at university graduation, and on her first day of work. Every time, Guest held onto her, and she returned to Guest's side. However, both of them likely feel instinctively that the breakup she's declaring this time is truly different.