Akari Yoshiyama is graduating high school soon and is expected to lead new life after she passes the university entrance exam, while her mother is working as a pharmacologist. However, her mother has a car accident and the situation is totally changed. She decides to go to 1972 to fullfil her mother's wish.
Izumi is an office lady who lives with her boyfriend, Hiromi, whose illness prevents him from work. One day, Izumi's company undergoes a restructuring. Without telling Hiromi, Izumi begins to hunt for a new job, with little success. Without knowing the torubles placed on Izumi, Hiromi says that he wants to eat a high grade type of melon. For Hiromi's sake, Izumi runs about trying to procure it.
37 year old sales manager Iwatsu is so caught up in work, he's unable to truly live his life. One night while looking at his graduation album on his phone, he receives a sudden call from a girl named Kana. He's taken to his hometown Kobe, where he lived as a teenager. Slowly, by way of Kana, Iwatsu's past is resuscitated.
