30-year-old Saori's relationship with her husband, once passionate, has turned cold. He barely speaks to her anymore. One day, she notices strange behavior from him. He never has his phone at home and only charges it in the car. His obsession with privacy fills her heart with anxiety and suspicion. Unable to confide in anyone, the gap between her and her husband widens over time. Craving someone to listen to her pain, she finds herself drawn into a journey. Despite feelings of guilt, she resolves to embark on a trip with a stranger.